dirty

the dirty end of the stick

(informal, chiefly Brit.)the difficult or unpleasant part of a task or situation

(非正式，主英)（任务或形势）困难（或讨厌）的部分

do the dirty on someone

(Brit. informal)cheat or betray someone

(英，非正式)欺骗；背叛（某人）

get one's hands dirty (或 dirty one's hands)

do manual, menial, or other hard work

干体力活，干粗活，干重活

unlike most chairmen, he gets his hands dirty working alongside the other managers.

和大多数董事长不同，他不辞辛劳，和其他经理们一起干活。

play dirty

(informal)act in a dishonest or unfair way

(非正式)做事不诚实（或不公平）

talk dirty

(informal)speak about sex in a way considered to be coarse or obscene

(非正式)讲下流话

wash one's dirty linen in public