直译为：
if we don't want people to find out, then we shouldn't do it.
引申翻译为
1.若要人不知,除非己莫为.（白昼有眼,黑夜有耳）
The day has eyes , the night has ears.
直译为：
if we don't want people to find out, then we shouldn't do it.
引申翻译为
1.若要人不知,除非己莫为.（白昼有眼,黑夜有耳）
The day has eyes , the night has ears.