清净

ěr gēn qīng jìng

耳根清净。

The ear is peaceful and undisturbed.

tú qīng jìng

图清净

seek a peaceful and quiet life

qīng jìng shì jiè

清净世界

world free from disturbance and noise

qīng jìng de hé shuǐ

清净的河水

clear river water

hú shuǐ qīng jìng kě jiàn dǐ

湖水清净可见底。

The lake is so clear that you can see the bottom.

ràng kōng qì qīng jìng

让空气清净

clear the air