123 Chinese Idioms (成语), 100 from the Singapore Primary School Curriculum List—more soon!
bù fēn qīng hóng zào bái
Literal Meaning 字面意思
Unable to differentiate between green, red, black and white
To be undiscriminating; to not discern the truth
Similar English Idioms 相似英文习语
Tar with the same brush; scattergun approach; to not separate the wheat from the chaff
真是不公平！ 老师居然在还没找出恶作剧的始作俑者之前，就不分青红皂白地惩罚了全班！ So unfair! Without finding out who the pranksters are, the teacher tarred everyone with the same brush by punishing the whole class!