友 ⇒
朋友 péngyou, friend/CL:個|个[gè],位[wèi]
女朋友 nǚpéngyou, girlfriend
男朋友 nánpéngyou, boyfriend
男友 nányǒu, boyfriend
女友 nǚyǒu, girlfriend
老朋友 lǎopéngyou, old friend/(slang) period/menstruation
友好 Yǒuhǎo/yǒuhǎo, Youhao district of Yichun city 伊春市[Yī chūn shì], Heilongjiang, friendly/amicable...
室友 shìyǒu, roommate
友谊 yǒuyì, [友誼], companionship/fellowship/friendship
友 yǒu, friend
小朋友 xiǎopéngyǒu, child/CL:個|个[gè]
友善 yǒushàn, friendly
队友 duìyǒu, [隊友], member of same class, team, work group etc/teammate
好友 hǎoyǒu, close friend/pal/(social networking website) friend/CL:個|个[gè]
友情 yǒuqíng, friendly feelings/friendship
老友 lǎoyǒu, old friend/sb who passed the county level imperial exam (in Ming dynasty)
战友 zhànyǒu, [戰友], comrade-in-arms/battle companion
盟友 méngyǒu, ally
校友 xiàoyǒu, schoolmate/alumnus/alumna
挚友 zhìyǒu, [摯友], intimate friend/close friend
亲友 qīnyǒu, [親友], friends and relatives
交友 jiāoyǒu, to make friends
密友 mìyǒu, close friend
交朋友 jiāopéngyou, to make friends/(dialect) to start an affair with sb
教友 jiàoyǒu, church member
友爱 yǒuài, [友愛], friendly affection/fraternal love
友军 yǒujūn, [友軍], friendly forces/allies
亲朋好友 qīnpénghǎoyǒu, [親朋好友], friends and family/kith and kin
狐朋狗友 húpénggǒuyǒu, a pack of rogues (idiom); a gang of scoundrels
友人 yǒurén, friend
良师益友 liángshīyìyǒu, [良師益友], good teacher and helpful friend (idiom); mentor
血友病 xuèyǒubìng, hemophilia
校友会 书友会 网友 wǎngyǒu, [網友], online friend/Internet user
够朋友 gòupéngyou, [夠朋友], (coll.) to be a true friend
病友 bìngyǒu, a friend made in hospital or people who become friends in hospital/wardmate
舍友 shèyǒu, dormitory roommate
友谊赛 yǒuyìsài, [友誼賽], friendly match/friendly competition
工友 gōngyǒu, workmate
贤友 友子 择友 吾友 故友 gùyǒu, old friend/deceased friend
亦友 票友 piàoyǒu, an amateur actor (e.g. in Chinese opera)
难友 访友 益友 yìyǒu, helpful friend/wise companion
至友 睦邻友好 旧友 jiùyǒu, [舊友], old friend
友邻 友舰 友机 友友 七友 歌友会 赌友 马友友 MǎYǒuyǒu, [馬友友], Yo-Yo Ma (1955-), French-Chinese-American cellist
德友 诤友 zhèngyǒu, [諍友], a friend capable of direct admonition
重友 友邦 yǒubāng, friendly state/ally
友素 友枝 会友 huìyǒu, [會友], to make friends/to meet friends/member of the same organization
基友 jīyǒu, (slang) very close same-sex friend/gay partner
良友 liángyǒu, good friend/companion
棋友 大友 书友 化友 福友 崔智友 武会友 黑鬼之友 树友 狗友 友村 住友 Zhùyǒu, Sumitomo, Japanese company
亦师亦友 贵友 宫友 杨友尚 敌友 至亲好友 诗友 智友 和贤友
好 ⇒
好 hǎo/hào, good/well/proper/good to/easy to/very/so/(suffix indicating completion or readin...
好像 hǎoxiàng, as if/to seem like
好好 hǎohǎo, well/carefully/nicely/properly
不好意思 bùhǎoyìsi, to feel embarrassed/to find it embarrassing/to be sorry (for inconveniencing sb)
不好 bùhǎo, no good
好运 hǎoyùn, [好運], good luck
美好 měihǎo, beautiful/fine
正好 zhènghǎo, just (in time)/just right/just enough/to happen to/to chance to/by chance/it jus...
好事 hǎoshì/hàoshì, good action, deed, thing or work (also sarcastic, "a fine thing indeed")/charity...
好人 好处 hǎochu, [好處], benefit/advantage/gain/profit/also pr. [hǎo chù]/CL:個|个[gè]
好几 hǎojǐ, [好幾], several/quite a few
好莱坞 Hǎoláiwù, [好萊塢], Hollywood
好多 hǎoduō, many/quite a lot/much better
好看 hǎokàn, good-looking/nice-looking/good (of a movie, book, TV show etc)/embarrassed/humil...
你好 nǐhǎo, hello/hi
好玩 hǎowán/hàowán, amusing/fun/interesting, to be playful/to be fond of one's fun
好吃 hǎochī/hàochī, tasty/delicious, to be fond of eating/to be gluttonous
好奇 hàoqí, inquisitive/curious/inquisitiveness/curiosity
好笑 hǎoxiào, laughable/funny/ridiculous
好久 hǎojiǔ, quite a while
最好 zuìhǎo, best/(you) had better (do what we suggest)
好样 刚好 gānghǎo, [剛好], just/exactly/to happen to be
友好 Yǒuhǎo/yǒuhǎo, Youhao district of Yichun city 伊春市[Yī chūn shì], Heilongjiang, friendly/amicable...
做好 良好 liánghǎo, good/favorable/well/fine
只好 zhǐhǎo, without any better option/to have to/to be forced to
修好 xiūhǎo, to repair (sth broken)/to restore (sth damaged)/to establish friendly relations ...
好受 hǎoshòu, feeling better/to be more at ease
爱好 àihào, [愛好], to like/to take pleasure in/keen on/fond of/interest/hobby/appetite for/CL:個|个[g...
问好 wènhǎo, [問好], to say hello to/to send one's regards to
好听 hǎotīng, [好聽], pleasant to hear
幸好 xìnghǎo, fortunately
好转 hǎozhuǎn, [好轉], to improve/to take a turn for the better/improvement
好日子 hǎorìzi, auspicious day/good day/happy life
也好 好友 hǎoyǒu, close friend/pal/(social networking website) friend/CL:個|个[gè]
好比 hǎobǐ, to be just like/can be compared to
恰好 qiàhǎo, as it turns out/by lucky coincidence/(of number, time, size etc) just right
您好 nínhǎo, hello (polite)
好些 hǎoxiē, a good deal of/quite a lot
好戏 看好 kānhǎo/kànhǎo, to keep an eye on, to regard as having good prospects
好意 hǎoyì, good intention/kindness
好心 hǎoxīn, kindness/good intentions
好不容易 hǎobùróngyì, with great difficulty/very difficult
爱好者 àihàozhě, [愛好者], lover (of art, sports etc)/amateur/enthusiast/fan
好感 hǎogǎn, good opinion/favorable impression
好家伙 hǎojiāhuo, my God!/oh boy!/man!
讨好 tǎohǎo, [討好], to get the desired outcome/to win favor by fawning on sb/to curry favor with/a f...
不好过 好球 hǎoqiú, (ball sports) good shot!/nice hit!/well played!
好说 hǎoshuō, [好說], easy to deal with/not a problem/(polite answer) you flatter me
好话 hǎohuà, [好話], friendly advice/words spoken on sb's behalf/a good word/kind words/words that so...
好奇心 hàoqíxīn, interest in sth/curiosity/inquisitive
好坏 hǎohuài, [好壞], good or bad/good and bad/standard/quality
上好 shànghǎo, first-rate/top-notch
完好 wánhǎo, intact/in good condition
嗜好 shìhào, hobby/indulgence/habit/addiction
好歹 hǎodǎi, good and bad/most unfortunate occurrence/in any case/whatever
喜好 xǐhào, to like/fond of/to prefer/to love/one's tastes/preference
大好 游手好闲 yóushǒuhàoxián, [遊手好閑], to idle about
好使 hǎoshǐ, easy to use/to function well/so that/in order to
好手 hǎoshǒu, expert/professional
好玩儿 hǎowánr, [好玩兒], erhua variant of 好玩[hǎo wán]
重归于好 恰到好处 qiàdàohǎochù, [恰到好處], it's just perfect/it's just right
完好无损 wánhǎowúsǔn, [完好無損], in good condition/undamaged/intact
行好 xínghǎo, to be charitable/to do a good deed
好不 hǎobù, not at all .../how very ...
好过 hǎoguò, [好過], to have an easy time/(feel) well
搞好 gǎohǎo, to do well at/to do a good job
要好 yàohǎo, to be on good terms/to be close friends/striving for self-improvement
好评 hǎopíng, [好評], favorable criticism/positive evaluation
安好 ānhǎo, safe and sound/well
好色 hàosè, to want sex/given to lust/lecherous/lascivious/horny
好意思 hǎoyìsi, to have the nerve/what a cheek!/to feel no shame/to overcome the shame/(is it) p...
好斗 hàodòu, [好鬥], to be warlike/to be belligerent
抓好 偏好 piānhào, to prefer/to be partial to sth/preference
好客 hàokè, hospitality/to treat guests well/to enjoy having guests/hospitable/friendly
好榜样 好汉 hǎohàn, [好漢], hero/strong and courageous person/CL:條|条[tiáo]
癖好 pǐhào, one's passion/one's obsession
好心人 老好人 lǎohǎorén, one who tries never to offend anybody
好好先生 hǎohǎoxiānsheng, Mr Goody-goody/yes-man (sb who agrees with anything)
拿手好戏 不好惹 bùhǎorě, not to be trifled with/not to be pushed around/stand no nonsense
倒好 相好 xiānghǎo, to be intimate/close friend/paramour
好似 hǎosì, to seem/to be like
好头 亲朋好友 qīnpénghǎoyǒu, [親朋好友], friends and family/kith and kin
叫好 jiàohǎo, to applaud/to cheer
好在 hǎozài, luckily/fortunately
好恶 hàowù, [好惡], lit. likes and dislikes/preferences/taste
和好 héhǎo, to become reconciled/on good terms with each other
见好 好战 hàozhàn, [好戰], warlike
好端端 hǎoduānduān, perfectly all right/without rhyme or reason
好胜 hàoshèng, [好勝], eager to win/competitive/aggressive
好找 乐善好施 lèshànhàoshī, [樂善好施], kind and charitable
好心肠 好动 hàodòng, [好動], active/restless/energetic
好样儿的 好容易 hǎoróngyì, with great difficulty/to have a hard time (convincing sb, relinquishing sth etc)
好强 hàoqiáng, [好強], eager to be first
可好 kěhǎo, good or not?/luckily/fortuitously
好走 hǎozǒu, bon voyage/Godspeed
好景不长 hǎojǐngbùcháng, [好景不長], a good thing doesn't last forever (idiom)
好性 老相好 洁身自好 jiéshēnzìhào, [潔身自好], clean-living and honest (idiom); to avoid immorality/to shun evil influence/to m...
交好 好生 hǎoshēng, (dialect) very/quite/properly/well/thoroughly
好望角 HǎowàngJiǎo, Cape of Good Hope
好事多磨 hǎoshìduōmó, the road to happiness is strewn with setbacks (idiom)
学好 xuéhǎo, [學好], to follow good examples
好人好事 hǎorénhǎoshì, admirable people and exemplary deeds
好气 hǎoqì, [好氣], to be happy/to be in a good mood
好胜心 晴好 qínghǎo, bright and sunny weather
好高骛远 hàogāowùyuǎn, [好高騖遠], to bite off more than one can chew (idiom)/to aim too high
好声好气 好处费 俗话说得好 好男儿 好人家 睦邻友好 利好 lìhǎo, favorable/good/advantage
好赖 好好儿 hǎohāor, [好好兒], in good condition/perfectly good/carefully/well/thoroughly
绿林好汉 lǜlínhǎohàn, [綠林好漢], true hero of Greenwood (refers to popular hero in Robin Hood style)
姣好 拍手叫好 英雄好汉 yīngxiónghǎohàn, [英雄好漢], heroes
祝好梦 我好 真好 恩好 好逸恶劳 hàoyìwùláo, [好逸惡勞], to love ease and comfort and hate work (idiom)
好戏连台 好贵 好长 太好 娜好 裘抱好 钱存好 好善 好学 hàoxué, [好學], eager to study/studious/erudite
好天 好恩 路修好 李子好 好极 好琪 正佑好 各有所好 gèyǒusuǒhào, everyone has their likes and dislikes (idiom)
好俊 投其所好 tóuqísuǒhào, to adapt to sb's taste/to fit sb's fancy
五好 马拴好 多快好省 好大喜功 hàodàxǐgōng, to rejoice in grandiose deeds/to strive to achieve extraordinary things
钟万好 哲梦好 至亲好友 三好 贝碧好 人好
关 ⇒
关系 guānxi, [關係]/[關系], relation/relationship/to concern/to affect/to have to do with/guanxi/CL:個|个[gè],...
关于 guānyú, [關於], pertaining to/concerning/with regard to/about/a matter of
关 Guān/guān, [關], surname Guan, mountain pass/to close/to shut/to turn off/to concern/to involve
没关系 méiguānxi, [沒關係], it doesn't matter
有关 yǒuguān, [有關], to have sth to do with/to relate to/related to/to concern/concerning
关心 guānxīn, [關心], to be concerned about/to care about
关键 guānjiàn, [關鍵], crucial point/crux/CL:個|个[gè]/key/crucial/pivotal
无关 wúguān, [無關], unrelated/having nothing to do (with sth else)
关注 guānzhù, [關注], to pay attention to/to follow sth closely/to follow (on social media)/concern/in...
关掉 guāndiào, [關掉], to switch off/to shut off
关闭 guānbì, [關閉], to close/to shut
关门 guānmén, [關門], to close a door/to lock a door/(of a shop etc) to close (for the night, or perma...
相关 xiāngguān, [相關], related/relevant/pertinent/to be interrelated/(statistics) correlation
关上 guānshàng, [關上], to close (a door)/to turn off (light, electrical equipment etc)
关联 guānlián, [關聯], related/linked/affiliated
无关紧要 wúguānjǐnyào, [無關緊要], indifferent/insignificant
关照 guānzhào, [關照], to take care/to keep an eye on/to look after/to tell/to remind
性关系 xìngguānxi, [性關係], sexual relations/sexual contact/intercourse
难关 nánguān, [難關], difficulty/crisis
机关 jīguān, [機關], mechanism/gear/machine-operated/office/agency/organ/organization/establishment/i...
关押 guānyā, [關押], to imprison/to lock up (in jail)
至关重要 zhìguānzhòngyào, [至關重要], extremely important/vital/crucial/essential
公关 gōngguān, [公關], public relations
开关 kāiguān, [開關], power switch/gas valve/to open the city (or frontier) gate/to open and close/to ...
关节 guānjié, [關節], joint (physiology)/key point/critical phase
关机 guānjī, [關機], to turn off (a machine or device)/to finish shooting a film
海关 hǎiguān, [海關], customs (i.e. border crossing inspection)/CL:個|个[gè]
关乎 guānhū, [關乎], to relate to/concerning/about
关灯 关头 guāntóu, [關頭], juncture/moment
关爱 guānài, [關愛], to show concern and care for
双关 shuāngguān, [雙關], pun/play on words
关怀 guānhuái, [關懷], care/solicitude/to show care for/concerned about/attentive to
关禁闭 guānjìnbì, [關禁閉], to put in detention (a soldier, a pupil)
关节炎 guānjiéyán, [關節炎], arthritis
人际关系 rénjìguānxì, [人際關系], interpersonal relationship
过关 guòguān, [過關], to cross a barrier/to get through (an ordeal)/to pass (a test)/to reach (a stand...
机关枪 jīguānqiāng, [機關槍], also written 機槍|机枪/machine gun
双关语 shuāngguānyǔ, [雙關語], pun/play on words/a phrase with a double meaning
漠不关心 mòbùguānxīn, [漠不關心], not the least bit concerned/completely indifferent
关键词 guānjiàncí, [關鍵詞], keyword
生死攸关 shēngsǐyōuguān, [生死攸關], matter of life and death
事关 shìguān, [事關], to concern/on (some topic)/about/concerning/to have importance for
紧要关头 jǐnyàoguāntóu, [緊要關頭], urgent and important moment (idiom); critical juncture
关门大吉 guānméndàjí, [關門大吉], to close down a business for good and put the best face on it (idiom)
鬼门关 guǐménguān, [鬼門關], the gates of hell
关口 guānkǒu, [關口], pass/gateway/(fig.) juncture
关岛 GuānDǎo, [關島], Guam
通关 tōngguān, [通關], to clear customs/(gaming) to finish (a game, a level, a stage, etc)
蒙混过关 ménghùnguòguān, [矇混過關], to get away with it/to slip through/to bluff one's way out/Taiwan pr. [mēng hùn ...
息息相关 xīxīxiāngguān, [息息相關], closely bound up (idiom); intimately related
关系网 关卡 guānqiǎ, [關卡], checkpoint (for taxation, security etc)/barrier/hurdle/red tape/CL:個|个[gè],道[dào...
咬紧牙关 yǎojǐnyáguān, [咬緊牙關], lit. to bite the teeth tightly (idiom); fig. to grit one's teeth and bear the pa...
无关痛痒 wúguāntòngyǎng, [無關痛癢], not to affect sb/irrelevant/of no importance/insignificant
关东 Guāndōng, [關東], Northeast China/Manchuria/lit. east of Shanhai Pass 山海關|山海关[Shān hǎi guān]/Kantō...
人命关天 rénmìngguāntiān, [人命關天], human life is beyond value (idiom)
关子 guānzi, [關子], climax (in a story)
暧昧关系 àimèiguānxì, [曖昧關係], shady relationship/affair/adulterous relationship
关切 guānqiè, [關切], to be deeply concerned/to be troubled (by)
社会关系 shèhuìguānxì, [社會關係], social relation
关塔那摩湾 GuāntǎnàmóWān, [關塔那摩灣], Guantanamo Bay (in Cuba)
关张 关键性 闭关 bìguān, [閉關], to close the passes/to seal off the country/seclusion (monastic practice, e.g. o...
关税 guānshuì, [關稅], customs duty/tariff
事不关己 shìbùguānjǐ, [事不關己], a matter of no concern to oneself (idiom)
髋关节 kuānguānjié, [髖關節], pelvis/hip joint
阳关道 YángguānDào, [陽關道], same as 陽關大道|阳关大道[Yáng guān Dà dào]
过关斩将 guòguānzhǎnjiàng, [過關斬將], to surmount all difficulties (on the way to success) (idiom)/abbr. for 過五關斬六將|过五...
把关 bǎguān, [把關], to guard a pass/to check on sth
关连 guānlián, [關連], variant of 關聯|关联[guān lián]
相关性 xiāngguānxìng, [相關性], correlation
关颖珊 GuānYǐngshān, [關穎珊], Michelle Kwan (1980-), former American figure skater, Olympic medalist
牙关 yáguān, [牙關], jaw/mandibular joint
关键字 guānjiànzì, [關鍵字], keyword
裙带关系 qúndàiguānxi, [裙帶關係], favoritism shown to sb because of the influence of the person's wife or other fe...
关西 Guānxī, [關西], Kansai region, Japan/Guanxi or Kuanhsi town in Hsinchu County 新竹縣|新竹县[Xīn zhú Xi...
关硕勇 阳关 Yángguān, [陽關], Yangguan or Southern Pass on the south Silk Road in Gansu, 70 km south of Dunhua...
进关 jìnguān, [進關], inbound customs (international trade)
下关 Xiàguān, [下關], Xiaguan district of Nanjing City 南京市 in Jiangsu 江蘇|江苏
边关 biānguān, [邊關], border station/strategic defensive position on frontier
膝关节 肘关节 至关紧要 关进 关怀备至 guānhuáibèizhì, [關懷備至], the utmost care (idiom); to look after sb in every possible way
国家机关 玄关前 关进来 关小点 关停 guāntíng, [關停], (of a power plant, refinery etc) to shut down
关公 Guāngōng, [關公], Lord Guan (i.e. 關羽|关羽[Guān Yǔ])
出关 关原 报关 bàoguān, [報關], to declare at customs
关起来 关才行 休戚相关 xiūqīxiāngguān, [休戚相關], to share the same interests (idiom)/to be closely related/to be in the same boat
过五关斩六将 guòwǔguānzhǎnliùjiàng, [過五關斬六將], lit. to cross five passes and slay six generals (idiom)/fig. to surmount all dif...
组织关系 大关 dàguān, [大關], strategic pass/barrier or mark (i.e. a level considered impressive, usually a ro...
关隘 guānài, [關隘], mountain pass
关凯 无关宏旨 关奇普 头关 闭关自守 bìguānzìshǒu, [閉關自守], close the country to international intercourse
关键球 关进藩 关临 关系史 攻关 gōngguān, [攻關], to storm a strategic pass/fig. to tackle a key problem
关系户 年关 niánguān, [年關], end of the year
乔关进 转换开关 闭关锁国 bìguānsuǒguó, [閉關鎖國], to close the passes and seal off the country/to close a country to exclude forei...
彭妮关在 搞关系 东关 何关 关心材 关心我 关德琳 关伯兰 关小杰 马关 Mǎguān, [馬關], Maguan county in Wenshan Zhuang and Miao autonomous prefecture 文山壯族苗族自治州|文山壮族苗族自...
海关总署 hǎiguānzǒngshǔ, [海關總署], General Administration of Customs (GAC)
关暴民 关居来
系 ⇒
关系 guānxi, [關係]/[關系], relation/relationship/to concern/to affect/to have to do with/guanxi/CL:個|个[gè],...
联系 liánxì, [聯係]/[聯繫], variant of 聯繫|联系[lián xì], connection/contact/relation/to get in touch with/to i...
没关系 méiguānxi, [沒關係], it doesn't matter
系统 xìtǒng, [系統], system/CL:個|个[gè]
系 xì/jì, [係]/[繫], to connect/to relate to/to tie up/to bind/to be (literary), system/department/fa...
系列 xìliè, series/set
星系 xīngxì, see 恆星系|恒星系[héng xīng xì]
性关系 xìngguānxi, [性關係], sexual relations/sexual contact/intercourse
体系 tǐxì, [體系], system/setup/CL:個|个[gè]
太阳系 tàiyángxì, [太陽系], solar system
银河系 Yínhéxì, [銀河系], Milky Way Galaxy/the galaxy (our galaxy)
干系 gānxì, [干係], responsibility
人际关系 rénjìguānxì, [人際關系], interpersonal relationship
维系 wéixì, [維繫], to maintain/to keep up/to hold together
联系人 liánxìrén, [聯繫人], contact (person)
系主任 xìzhǔrèn, chairman of department/dean/CL:位[wèi],個|个[gè]
神经系统 shénjīngxìtǒng, [神經系統], nervous system
系数 xìshù, [係數], coefficient/factor/modulus/ratio
直系亲属 zhíxìqīnshǔ, [直系親屬], next of kin/immediate dependant
关系网 操作系统 cāozuòxìtǒng, [操作系統], operating system
循环系统 xúnhuánxìtǒng, [循環系統], circulatory system
消化系统 xiāohuàxìtǒng, [消化系統], digestive system/gastrointestinal tract
暧昧关系 àimèiguānxì, [曖昧關係], shady relationship/affair/adulterous relationship
社会关系 shèhuìguānxì, [社會關係], social relation
系列剧 系统性 xìtǒngxìng, [系統性], systematic
直系 zhíxì, directly related
派系 pàixì, sect/faction
呼吸系统 hūxīxìtǒng, [呼吸系統], respiratory system
嫡系 díxì, direct line of descent/under one's personal command/school or faction passing on...
化学系 huàxuéxì, [化學系], department of chemistry
子系统 zǐxìtǒng, [子系統], subsystem
供电系统 语系 yǔxì, [語系], language family
裙带关系 qúndàiguānxi, [裙帶關係], favoritism shown to sb because of the influence of the person's wife or other fe...
系列赛 系列片 xìlièpiàn, film series
文学系 水系 shuǐxì, drainage system
一系列 yīxìliè, a series of/a string of
生物系 母系 mǔxì, maternal/matriarchal
联系点 安全系数 父系 fùxì, paternal line/patrilineal
哲学系 世系 shìxì, lineage/genealogy/family tree
参照系 cānzhàoxì, [參照系], frame of reference/coordinate frame (math.)
肠系膜 组织关系 根系 gēnxì, root system
该系 系统工程 配系 株系 联系卡 谱系 pǔxì, [譜係]/[譜系], variant of 譜系|谱系[pǔ xì], pedigree
关系史 关系户 系谱 搞关系 系统化 参考系 cānkǎoxì, [參考系], frame of reference
支系 zhīxì, branch or subdivision of a family
品系 pǐnxì, [品繫], strain (of a species)
坐标系 zuòbiāoxì, [座標系], coordinate system (geometry)
摩擦系数