不要

bù yào dà shēng xuān huá

不要大声喧哗。

Don't make a racket!

bù yào zhè yàng bēi guān

不要这样悲观。

Don't be so pessimistic!

bù yào má bì dà yi

不要麻痹大意。

Don't slacken your vigilance.

bù yào rǎn shàng zuò guān dāng lǎo ye de huài xí guàn

不要染上做官当老爷的坏习惯。

Don't pick up the habit of lording it over the people while an official.

bù yào zǒng shì jué de zì jǐ duì

不要总是觉得自己对。

Don't think you are always right.

bù yào bù dǒng zhuāng dǒng

不要不懂装懂。

Don't pretend to know things you don't understand.

bù yào yǐ mào qǔ rén

不要以貌取人。

Don't judge people by their appearance.

bù yào zì zhǎo má fan

不要自找麻烦。

Don't ask for trouble. Let sleeping dogs lie.