find out表示查明(真相等);查出……的罪行;揭发出;使受惩罚(或报应),如:查明(真相等): I'll find out her secret. (我要弄清她的秘密。), All you have to do is to find out the KEY to escape. (你所要做的就是找到藏在某个馒头里的钥匙然后逃跑。)另外还有"对(某弱处)起作用"的意思,如: This cold weather finds out my old wound.这个寒冷的天气使我的老伤发作了。 http://www.kekenet.com/kouyu/201605/434153.shtml