三的英語翻譯：

three; several; many
【計】 tri
【化】 trimethano-; trimethoxy
【醫(yī)】 tri-

手的英語翻譯：

a bunch of fives; a person doing a certain job; fist; hand; handy; hold; manus
mauley; pud
【醫(yī)】 cheir-; cheiro-; chir-; chiro-; hand; main; manus

完成的英語翻譯：

accomplish; finish; fulfil; achieve; acquit; complete; go through with
【計】 finish; put-through
【化】 make good
【醫(yī)】 eetelechy