真ㄓㄣzhēn偽ㄨㄟˋwèi莫ㄇㄛˋmò辨ㄅㄧㄢˋbiàn

  1. 真假難以清楚辨別。《隋書·卷三二·經籍志一》：「戰國縱橫，真偽莫辨，諸子之言，紛然淆亂。」

英can't judge true or false (idiom)​; unable to distinguish the genuine from the fake, not to know whether to believe (what one reads in the news)​