/θʌm ||; θʌm/noun[C] 1 the short thick finger at the side of each hand 大拇指 ☞picture at body 见body插图
2 the part of a glove, etc that covers your thumb(1) (手套的)拇指部份
a rule of thumb→
RULE¹
stand/stick out like a sore thumb→
SORE¹
the thumbs up/down a sign or an expression that shows approval/disapproval 表示赞同╱不赞同的手势或用语
under sb's thumb (used about a person) completely controlled by sb (指人)完全在某人的支配或控制之下;受制于:
She's got him under her thumb. 她已将他完全控制住。