1、We should let sleeping dogs lie and not tell him that we disobeyed him.
我們不要自找麻煩，別對他說我們不服從他

2、You should let sleeping dogs lie and not ask him any questions about the argument.
睡狗勿惹；不要惹是生非；不要自找麻煩。

3、We decided to let sleeping dogs lie and not take them to court
我們決定不起訴他們, 免得惹事生非.

let sleeping dogs lie翻譯