18 Bite the hand that feedsone.

　　恩将仇报。

　　19 Bitter pills may have whole some effects.

　　良药苦口利于病。

　　20 Blind men can judge no colours.

　　不宜问道於盲。

　　21 Blood is thicker than water.

　　血浓于水。

　　22 Bread is the staff oflife.

　　民以食为天。

　　23 Brevity is the soul ofwit.

　　言以简洁为贵。

　　24 Bring up a raven and he'll pick out your eyes.

　　养虎贻患。

　　25 Burn not your house to rid it of the mouse.

　　投鼠忌器。