find out each man's thumbscrew揪出他人的把柄
N-COUNT(可数名词) A thumbscrew is an object that was used in the past to torture people by crushing their thumbs. 拇指夹; 旧时刑具
N-COUNT(可数名词) If someone puts the thumbscrews on you, they start to put you under extreme pressure in order to force you to do something. 极大的压力