不辨黑白
not know chalk from cheese
颠倒黑白、颠倒是非、混淆是非
call white black、 swear black is white
仿真黑白信号
artificial black or white signal
海燕牌黑白电视机
Petrel black-white TV set
黑白棒型
black and white rod pattern
黑白菜
Brassica parachinensis Bailey
黑白差异
black-white discrimination