W

Walls have ears。

隔墙有耳         

Who doesn,t advance loses ground.

逆水行舟,不进则退

When the snape and the clam grapple,it is the fisherman who profits.

鹬蚌相争,鱼翁得利

Wherever there is oppression,there is resistance.

哪里有压迫,哪里就有反抗

When the cat is away ,the mice will play.

山中无老虎,猴子称大王

When is home ,do as the Romans do.

入乡随俗

Wear one's heart on one's sheeves.

开诚布公

Worried over him day and night.

盼星星,盼月亮

Without a single relative or friend to help sb.

无亲无故

who knows that every grain in bowl.Is the fruit of so much pain and toil.

谁知盘中餐，粒粒皆辛苦！