separate the sheep from the goats
分辨出真相或优胜劣汰
口语·区分好坏
英文释义
to distinguish between the good and the bad or the genuine and the counterfeit
例句
This final exam will separate the sheep from the goats in our class.
典故来源
源自《圣经·马太福音》，耶稣比喻审判日将义人（羊）与恶人（山羊）分开，后用于区分优劣。