一 yī, one/1/single/a (article)/as soon as/entire/whole/all/throughout/"one" radical in... 开 kāi, [開], to open/to start/to turn on/to boil/to write out (a prescription, check, invoice... 手 shǒu, hand/(formal) to hold/person engaged in certain types of work/person skilled in ... 石 Shí/dàn/shí, surname Shi, dry measure for grain equal to ten dou 斗/ten pecks/one hundred lite... 研 yán, to grind/study/research 廾 gǒng, hands joined 揅 yán, grind fine/study/research