原 ⇒
原因 yuányīn, cause/origin/root cause/reason/CL:個|个[gè]
原谅 yuánliàng, [原諒], to excuse/to forgive/to pardon
原来 yuánlái, [原來], original/former/originally/formerly/at first/so, actually, as it turns out
原 Yuán/yuán, Hara (Japanese surname), former/original/primary/raw/level/cause/source
原则 yuánzé, [原則], principle/doctrine/CL:個|个[gè]
原本 yuánběn, originally/original
原始 yuánshǐ, first/original/primitive/original (document etc)
原地 yuándì, (in) the original place/the place where one currently is/place of origin/local (...
原告 yuángào, complainant/plaintiff
复原 fùyuán, [復原], to restore (sth) to (its) former condition/to recover from illness/recovery
原先 yuánxiān, originally/original/former
原子弹 yuánzǐdàn, [原子彈], atom bomb/atomic bomb/A-bomb
原理 yuánlǐ, principle/theory
原料 yuánliào, raw material/CL:個|个[gè]
原样 yuányàng, [原樣], original shape/the same as before
草原 cǎoyuán, grassland/prairie/CL:片[piàn]
原子 yuánzǐ, atom/atomic
原型 yuánxíng, model/prototype/archetype
平原 píngyuán, field/plain/CL:個|个[gè]
原意 yuányì, original meaning/original intention
还原 huányuán, [還原], to restore to the original state/to reconstruct (an event)/reduction (chemistry)
病原体 bìngyuántǐ, [病原體], (med.) pathogen
原形 yuánxíng, original shape/true appearance (under the disguise)/true character
原状 yuánzhuàng, [原狀], previous condition/original state
原版 原件 yuánjiàn, the original/original document/master copy
高原 gāoyuán, plateau/CL:片[piàn]
原有 yuányǒu, original/former
原点 yuándiǎn, [原點], origin (math.)/origin of coordinates
原文 yuánwén, original text
原定 yuándìng, originally planned/originally determined
原罪 yuánzuì, original sin
原油 yuányóu, crude oil
江原道 Jiāngyuándào, Gangwon Province of Korea during Joseon Dynasty/Kangwon province of North Korea/...
原野 yuányě, plain/open country
原著 yuánzhù, original work (not translation or abridged)
物归原主 wùguīyuánzhǔ, [物歸原主], to return something to its rightful owner
抗原 kàngyuán, antigen
原稿 yuángǎo, manuscript/original copy
原型机 原封不动 yuánfēngbùdòng, [原封不動], sticking unmoving to the original (idiom); not an iota changed/untouched
荒原 huāngyuán, wasteland
水原 Shuǐyuán, Suweon City, capital of Gyeonggi province 京畿道[Jīng jī dào], South Korea
衣原 原位 yuánwèi, original position/(in) the same place/normal position/the place where one curren...
情有可原 qíngyǒukěyuán, pardonable (of interruption, misunderstanding etc)
原貌 yuánmào, the original form
原话 原处 yuánchù, [原處], original spot/previous place/where it was before
原子能 yuánzǐnéng, atomic energy
原汁原味 yuánzhīyuánwèi, original/authentic
原木 yuánmù, logs
原装 yuánzhuāng, [原裝], genuine/intact in original packaging (not locally assembled and packaged)
原原本本 yuányuánběnběn, from beginning to end/in its entirety/in accord with fact/literal
原委 yuánwěi, the whole story
亚原子 yàyuánzǐ, [亞原子], subatomic
原力 原价 原材料 yuáncáiliào, raw materials/unprocessed materials
原名 yuánmíng, original name
原生 yuánshēng, original/primary/native/indigenous/proto-/stock (firmware)
葛原依子 原作 yuánzuò, original works/original text/original author
原子核 yuánzǐhé, atomic nucleus
燎原 liáoyuán, to start a prairie fire
藤原 Téngyuán, Fujiwara (Japanese surname)
原判 原动力 yuándònglì, [原動力], motive force/prime mover/first cause/agent
原教旨主义 树原 小原 病原菌 bìngyuánjūn, a pathogen/a bacterial pathogen
过敏原 guòmǐnyuán, [過敏原], allergen/anaphylactogen
原产地 yuánchǎndì, [原產地], original source/place of origin/provenance
叶原 中原 Zhōngyuán, Central Plain, the middle and lower regions of the Yellow river, including Henan...
原址 yuánzhǐ, original location
原生态 苔原 原子结构 原籍 yuánjí, ancestral home (town)/birthplace
原班人马 yuánbānrénmǎ, [原班人馬], original cast/former team
原由 yuányóu, variant of 緣由|缘由[yuán yóu]
原田 Yuántián, Harada (Japanese surname)
原则性 yuánzéxìng, [原則性], principled
原配 原子钟 yuánzǐzhōng, [原子鐘], atomic clock
原色 yuánsè, primary color
树原亮 原封 原告席 吴原 原生质 yuánshēngzhì, [原生質], protoplasm
病原 bìngyuán, cause of disease/pathogen
筱原 原素 原物 原十兵 冰原 糖原 tángyuán, glycogen
原子量 yuánzǐliàng, atomic weight/atomic mass
原子尘 原子笔 yuánzǐbǐ, [原子筆], ballpoint pen/also written 圓珠筆|圆珠笔
原主 还原剂 huányuánjì, [還原劑], reducing agent
原战虎 欧原欣 关原 币原 原酒 原虫 燎原之势 江原 疟原虫 nüèyuánchóng, [瘧原蟲], plasmodium (malaria parasite)
松原 Sōngyuán, Songyuan prefecture level city in Jilin province 吉林省 in northeast China
卜原 三原 Sānyuán, Sanyuan County in Xianyang 咸陽|咸阳[Xián yáng], Shaanxi
原盖加 太原 Tàiyuán, Taiyuan prefecture level city and capital of Shanxi province 山西省 in central nort...
大原 荻原 原始社会 yuánshǐshèhuì, [原始社會], primitive society
三原色 石原聪 福原 兰普平原 钱原 原诗中 中原区 ZhōngyuánQū, [中原區], Zhongyuan District of Zhengzhou City 鄭州市|郑州市[Zhèng zhōu Shì], Henan
田原 原平 Yuánpíng, Yuanping county level city in Xinzhou 忻州[Xīn zhōu], Shanxi
原义 yuányì, [原義], original meaning
原人 yuánrén, prehistoric man/primitive man
原浆 原案 原故 yuángù, variant of 緣故|缘故[yuán gù]
木原 神经原 shénjīngyuán, [神經原], neuron/also written 神經元|神经元
初原 本原 郑原俊 宋原朝
上 ⇒
上 shǎng/shàng, see 上聲|上声[shǎng shēng], on top/upon/above/upper/previous/first (of multiple part...
上帝 Shàngdì, God
马上 mǎshàng, [馬上], at once/right away/immediately/on horseback (i.e. by military force)
晚上 wǎnshang, evening/night/CL:個|个[gè]/in the evening
身上 shēnshang, on the body/at hand/among
看上去 kànshangqu, it would appear/it seems (that)
事实上 shìshíshàng, [事實上], in fact/in reality/actually/as a matter of fact/de facto/ipso facto
上面 shàngmiàn, on top of/above-mentioned/also pr. [shàng mian]
早上 zǎoshang, early morning/CL:個|个[gè]
实际上 shíjìshàng, [實際上], in fact/in reality/as a matter of fact/in practice
路上 lùshang, on the road/on a journey/road surface
上班 shàngbān, to go to work/to be on duty/to start work/to go to the office
上去 shàngqù, to go up
上次 shàngcì, last time
手上 爱上 àishàng, [愛上], to fall in love with/to be in love with
上周 shàngzhōu, last week
脸上 地上 dìshang, on the ground/on the floor
上校 shàngxiào, high ranking officer in Chinese army/colonel
街上 jiēshang, on the street/in town
加上 jiāshàng, plus/to put in/to add/to add on/to add into/in addition/on top of that
车上 上学 shàngxué, [上學], to go to school/to attend school
上尉 shàngwèi, captain (military rank)
世上 shìshàng, on earth
船上 网上 wǎngshàng, [網上], online
楼上 lóushàng, [樓上], upstairs
台上 táishàng, [臺上], on stage
上课 shàngkè, [上課], to go to class/to attend class/to go to teach a class
墙上 关上 guānshàng, [關上], to close (a door)/to turn off (light, electrical equipment etc)
镇上 赶上 gǎnshàng, [趕上], to keep up with/to catch up with/to overtake/to chance upon/in time for
上司 shàngsi, boss/superior
上场 shàngchǎng, [上場], on stage/to go on stage/to take the field
上午 shàngwǔ, morning/CL:個|个[gè]
桌上 上车 shàngchē, [上車], to get on or into (a bus, train, car etc)
以上 yǐshàng, that level or higher/that amount or more/the above-mentioned/(used to indicate t...
上来 shànglái, [上來], to come up/to approach/(verb complement indicating success)
边上 上台 shàngtái, to rise to power (in politics)/to go on stage (in the theater)
上升 shàngshēng, [上昇], to rise/to go up/to ascend
天上 tiānshàng, celestial/heavenly
上门 shàngmén, [上門], to drop in/to visit/to lock a door/(of a shop) to close/to go and live with one'...
基本上 jīběnshang, basically/on the whole
上演 shàngyǎn, to screen (a movie)/to stage (a play)/a screening/a staging
上衣 shàngyī, jacket/upper outer garment/CL:件[jiàn]
山上 Shānshàng, Shanshang township in Tainan county 台南縣|台南县[Tái nán xiàn], Taiwan
成千上万 chéngqiānshàngwàn, [成千上萬], lit. by the thousands and tens of thousands (idiom); untold numbers/innumerable/...
碰上 pèngshàng, to run into/to come upon/to meet
上网 shàngwǎng, [上網], to go online/to connect to the Internet/(of a document etc) to be uploaded to th...
之上 zhīshàng, above
上瘾 shàngyǐn, [上癮], to get into a habit/to become addicted
上诉 shàngsù, [上訴], to appeal (a judicial case)/appeal
海上 hǎishàng, maritime
会上 上路 shànglù, to start on a journey/to be on one's way
上级 shàngjí, [上級], higher authorities/superiors/CL:個|个[gè]
上个月 shànggèyuè, [上個月], last month
上千 上钩 shànggōu, [上鉤], to take the bait
上楼 shànglóu, [上樓], to go upstairs
上下 shàngxià, up and down/top and bottom/old and new/length/about
肾上腺 shènshàngxiàn, [腎上腺], adrenal glands
上士 树上 上星期 shàngxīngqī, last week/previous week
场上 上头 shàngtóu/shàngtou, [上頭], (of alcohol) to go to one's head/(old) (of a bride-to-be) to bind one's hair int...
上百 机上 上将 shàngjiàng, [上將], general/admiral/air chief marshal
上空 shàngkōng, overhead/in the sky
水上 Shuǐshàng/shuǐshàng, Shuishang township in Chiayi county 嘉義縣|嘉义县[Jiā yì xiàn], west Taiwan, on water/...
上身 shàngshēn, upper part of the body
心上 上方 比不上 bǐbùshàng, can't compare with
上百万 换上 向上 xiàngshàng, upward/up/to advance/to try to improve oneself/to make progress
上海 Shànghǎi, Shanghai municipality, central east China, abbr. to 滬|沪[Hù]
上报 shàngbào, [上報], to report to one's superiors/to appear in the news/to reply to a letter
肩上 上当 shàngdàng, [上當], taken in (by sb's deceit)/to be fooled/to be duped
上十 上映 shàngyìng, to show (a movie)/to screen
上天 shàngtiān, Heaven/Providence/God/the day before/the sky above/to fly to the sky/to take off...
上层 shàngcéng, [上層], upper layer
上吊 shàngdiào, to hang oneself
上好 shànghǎo, first-rate/top-notch
上市 shàngshì, to hit the market (of a new product)/to float (a company on the stock market)
找上门 zhǎoshàngmén, [找上門], to come to sb's door/to call on sb
上街 shàngjiē, to go onto the streets/to go shopping
上边 shàngbian, [上邊], the top/above/overhead/upwards/the top margin/above-mentioned/those higher up
上等 shàngděng, highest quality/top-notch
至上 zhìshàng, supreme/paramount/above all else
上流 shàngliú, upper class
上前 shàngqián, to advance/to step forward
上任 shàngrèn, to take office/previous (incumbent)/predecessor
成百上千 chéngbǎishàngqiān, hundreds/a large number/lit. by the hundreds and thousands
跟不上 gēnbushàng, not able to keep up with
上交 shàngjiāo, to hand over to/to give to higher authority/to seek connections in high places
高高在上 gāogāozàishàng, set up on high (idiom); not in touch with reality/aloof and remote
上山 shàngshān, to go uphill/to spin cocoon (silkworms)/to pass away
上阵 shàngzhèn, [上陣], to go into battle
看上 kànshàng, to look upon/to take a fancy to/to fall for
上游 shàngyóu, upper reaches (of a river)/upper level/upper echelon/upstream
染上 rǎnshàng, to catch (a disease)/to get (a bad habit)
皇上 huángshang, the emperor/Your majesty the emperor/His imperial majesty
上涨 shàngzhǎng, [上漲], to rise/to go up
上风 shàngfēng, [上風], on the up/currently winning/rising (in popularity etc)
称得上 chēngdeshàng, [稱得上], can be counted as
上集 上苍 shàngcāng, [上蒼], heaven
上手 shàngshǒu, to obtain/to master/overhand (serve etc)/seat of honor
岸上 ànshàng, ashore/on the riverbank
登上 dēngshàng, to climb over/to ascend onto/to mount
上述 shàngshù, aforementioned/above-mentioned
上岸 shàngàn, to go ashore/to climb ashore
至高无上 zhìgāowúshàng, [至高無上], supreme/paramount/unsurpassed
雪上加霜 xuěshàngjiāshuāng, to add hail to snow (idiom); one disaster on top of another/to make things worse...
北上 běishàng, to go up north
上万 shàngwàn, [上萬], over ten thousand/fig. untold numbers/innumerable/thousands upon thousands
心上人 xīnshàngrén, sweetheart/one's beloved
考上 kǎoshàng, to pass a university entrance exam
遇上 大体上 dàtǐshàng, [大體上], overall/in general terms
安上 火上浇油 huǒshàngjiāoyóu, [火上澆油], to pour oil on the fire (idiom); fig. to aggravate a situation/to enrage people ...
上限 shàngxiàn, upper bound
背上 更上一层楼 gèngshàngyīcénglóu, [更上一層樓], to take it up a notch/to bring it up a level
上马 shàngmǎ, [上馬], to get on a horse/to mount
上心 shàngxīn, carefully/meticulously/to set one's heart on sth
板上钉钉 bǎnshàngdìngdīng, [板上釘釘], that clinches it/that's final/no two ways about it
上上下下 上岗 shànggǎng, [上崗], to take up one's post/to be given a job
面上 占上风 zhànshàngfēng, [佔上風], to take the lead/to gain the upper hand
冰上 上亿 上浮 shàngfú, to float up
交上 不相上下 bùxiāngshàngxià, equally matched/about the same
上半场 锦上添花 jǐnshàngtiānhuā, [錦上添花], lit. on brocade, add flowers (idiom); to decorate sth already perfect/gilding th...
井上 Jǐngshàng, Inoue (Japanese surname, pr. "ee-no-oo-ay")
上进 shàngjìn, [上進], to make progress/to do better/fig. ambitious to improve oneself/to move forwards
上色 shàngsè/shàngshǎi, top-quality/top-grade, to color (a picture etc)/to dye (fabric etc)/to stain (fu...
上机 上月 shàngyuè, last month
上年纪 上下班 shàngxiàbān, to start and finish work
上策 上野 Shàngyě, Ueno, district in Taitō Ward, Tokyo/Ueno (Japanese surname)
附上 fùshàng, attached/included herewith
无上 wúshàng, [無上], supreme
陆上 lùshàng, [陸上], land-based/on land
上等货 上行 shàngxíng, (of trains) up (i.e. towards the capital)/(of river boats) to go against the cur...
上回 shànghuí, last time/the previous time
上班族 shàngbānzú, office workers (as social group)
上装 shàngzhuāng, [上裝], upper garment
蒸蒸日上 zhēngzhēngrìshàng, becoming more prosperous with each passing day
上辈子 shàngbèizi, [上輩子], one's ancestors/past generations/a former incarnation
顶头上司 dǐngtóushàngsi, [頂頭上司], one's immediate superior
上千万 上口 shàngkǒu, to be able to read aloud fluently/to be suitable (easy enough) for reading aloud
谈不上 tánbushàng, [談不上], to be out of the question
上坡 shàngpō, uphill/upslope/to move upwards/to climb a slope
上佳 shàngjiā, excellent/outstanding/great
上相 shàngxiàng, photogenic/(old) high official
纸上谈兵 zhǐshàngtánbīng, [紙上談兵], lit. military tactics on paper (idiom)/fig. theoretical discussion that is worse...
成千上百 上部 shàngbù, upper section
上铺 上乘 shàngchéng, first-class/best quality/also pr. [shàng shèng]
上缴 shàngjiǎo, [上繳], to transfer (income, profits etc) to higher authorities
朗朗上口 lǎnglǎngshàngkǒu, to flow right off the tongue (of lyrics or poetry)/to recite with ease/catchy (o...
上下文 shàngxiàwén, (textual) context
上肢 shàngzhī, upper limb
窗上 上蜡 迎头赶上 yíngtóugǎnshàng, [迎頭趕上], to try hard to catch up
上火 shànghuǒ, to get angry/to suffer from excessive internal heat (TCM)
踏上 tàshàng, to set foot on/to step on or into
上扬 shàngyáng, [上揚], to rise (i.e. number increases)/a price rise/to raise
掌上明珠 zhǎngshàngmíngzhū, lit. a pearl in the palm (idiom)/fig. beloved person (esp. daughter)
上进心 shàngjìnxīn, [上進心], motivation/ambition
上调 shàngtiáo, [上調], to raise (prices)/to adjust upwards
上议院 Shàngyìyuàn, [上議院], Upper Chamber/Upper House/Senate
过上 马上来 跟上 gēnshàng, to catch up with/to keep pace with
上颚 上工 shànggōng, to go to work/to start work
上届 上年 shàngnián, last year
上杉 上座率 左上 zuǒshàng, upper left
后来居上 hòuláijūshàng, [後來居上], lit. late-comer lives above (idiom); the up-and-coming youngster outstrips the o...
上列 上文 shàngwén, preceding part of the text
难上加难 nánshàngjiānán, [難上加難], extremely difficult/even more difficult
川上 府上 fǔshàng, (polite) your home/residence
箭在弦上 上颌 shànghé, [上頜], maxilla (upper jaw)
上位 shàngwèi, seat of honor/person in a high-ranking position/to be promoted to a more senior ...
上档次 犯上 fànshàng, to offend one's superiors
积极向上 上劲 上桌 上房 shàngfáng, see 正房[zhèng fáng]
上晃 综上所述 zōngshàngsuǒshù, [綜上所述], to summarize/a round-up/in summary ...
送货上门 举国上下 jǔguóshàngxià, [舉國上下], the entire nation/the whole country, from the leadership to the rank and file
走上 榜上有名 水上飞机 shuǐshàngfēijī, [水上飛機], seaplane
攀上 上端 扶摇直上 fúyáozhíshàng, [扶搖直上], to skyrocket/to get quick promotion in one's career
火上加油 huǒshàngjiāyóu, to add oil to the fire (idiom); fig. to aggravate a situation/to enrage people a...
走马上任 zǒumǎshàngrèn, [走馬上任], to ride to take up an official appointment (idiom); to take on a job with alacri...
琅琅上口 上下车 迎难而上 上宾 上家 shàngjiā, preceding player (in a game)
上品 shàngpǐn, top-quality
上坟 shàngfén, [上墳], to visit a grave
上溯 村上 Cūnshàng, Murakami (Japanese surname)
上十万 上光 上刑 上书 shàngshū, [上書], to write a letter (to the authorities)/to present a petition
上坡路 shàngpōlù, uphill road/slope up/fig. upward trend/progress
说不上 shuōbushàng, [說不上], to be unable to say or tell/to not be worth mentioning
上百亿 形而上学 xíngérshàngxué, [形而上學], metaphysics
脸上无光 如上 自上而下 zìshàngérxià, top-down
甚嚣尘上 shènxiāochénshàng, [甚囂塵上], clamor raises the dust (idiom); a tremendous clamor/to raise a tremendous stink
矿上 一拥而上 yīyōngérshàng, [一擁而上], to swarm around/flocking (to see)
质量上乘 上几千 圣上 shèngshàng, [聖上], courtier's or minister's form of address for the current Emperor
上下学 上等兵 shàngděngbīng, private first class (army rank)
上梁不正下梁歪 shàngliángbùzhèngxiàliángwāi, lit. If the upper beam is not straight, the lower beam will be crooked (idiom); ...
堂上 青云直上 qīngyúnzhíshàng, [青雲直上], rising straight up in a clear sky (idiom); rapid promotion to a high post/meteor...
上纲上线 shànggāngshàngxiàn, [上綱上線], to criticize (as a matter of principle)
上高 Shànggāo, Shanggao county in Yichun 宜春, Jiangxi
上院 上解 上臂 跃然纸上 yuèránzhǐshàng, [躍然紙上], to appear vividly on paper (idiom); to show forth vividly (in writing, painting ...
上税 无上光荣 上朝 新官上任三把火 xīnguānshàngrènsānbǎhuǒ, (of a newly appointed official) to make bold changes on assuming office (idiom)
座上客 zuòshàngkè, guest of honor
上岁数 赤膊上阵 chìbóshàngzhèn, [赤膊上陣], lit. to go into battle bare-breasted (idiom)/fig. to go all out/to come out in t...
上海滩 上几百 成成千上万 上规模 成百上千万 上半时 上层建筑 shàngcéngjiànzhù, [上層建築], superstructure
祖上 逼上梁山 bīshàngliángshān, driven to join the Liangshan Mountain rebels/to drive to revolt/to force sb to d...
座上宾 看不上眼 上下级 上首 shàngshǒu, seat of honor/first place
上几十 上座 shàngzuò, seat of honor
上人 跨上 kuàshàng, to mount (a horse, bike, flight of stairs, rickshaw etc)
上水 Shàngshuǐ/shàngshuǐ, Sheung Shui (area in Hong Kong), upper reaches (of a river)/to go upstream/to ad...
上操 上期 上告 上数百万 井上健治 喜上眉梢 驶上 上十亿 马上放 上钢 上万亿 上访 shàngfǎng, [上訪], to seek an audience with higher-ups (esp. government officials) to petition for ...
上达 shàngdá, [上達], to reach the higher authorities
成上亿 上声 shǎngshēng, [上聲], falling and rising tone/third tone in modern Mandarin
上古 shànggǔ, the distant past/ancient times/antiquity/early historical times
上供 shànggòng, to make offerings (to gods or ancestors)/to offer gifts to superiors in order to...
上算 shàngsuàn, to be worthwhile/to be worth it
上焦 上数百 上成 上昆 上弦 shàngxián, to wind/to tighten/crescent moon/first quarter or waxing moon
同上 tóngshàng, as above/ditto/idem
上半年 shàngbànnián, first half (of a year)
自下而上 zìxiàérshàng, bottom-up
上百万亿 上千上万 数成千上万 上几万 跃上 上半期 上馆子 shàngguǎnzi, [上館子], to eat out/to eat at a restaurant
戴上长 上半叶 shàngbànyè, [上半葉], the first half (of a period)
马上同 上下一心 榜上无名 更上层楼 成万上亿 奋发向上 欺上瞒下 上几十万 长上 上账 上蕾 成上百 上万百 上官 Shàngguān/shàngguān, two-character surname Shangguan, high-ranking official/superior
上峰 shàngfēng, peak/summit/(old) higher authorities/superiors
上半夜 shàngbànyè, first half of the night/time before midnight
上图 上代 shàngdài, previous generation
上翔 犯不上 fànbushàng, see 犯不著|犯不着[fàn bu zháo]
上田 Shàngtián, Ueda (Japanese surname and place name)
上款 shàngkuǎn, addressee/name of recipient on painting or scroll
上诉书 上浆 上旬 shàngxún, first third of a month
上林 Shànglín, Shanglin county in Nanning 南寧|南宁[Nán níng], Guangxi
上杭 Shàngháng, Shanghang county level city in Longyan 龍岩|龙岩, Fujian
上压力 形而上 上百上千 由上至下 上几百万 上亿万 坝上 蜂拥而上 满上 太上皇 Tàishànghuáng, Taishang Huang/Retired Emperor/father of the reigning emperor/fig. puppet master
上下半场 负上万 梁上君子 liángshàngjūnzǐ, lit. the gentleman on the roof beam/fig. a thief
上城区 Shàngchéngqū, [上城區], Shangcheng district of Hangzhou city 杭州市[Háng zhōu shì], Zhejiang
中上层 上传下达