dead horse 是什么意思

	1.	Alimony is like buying oats for a dead horse 给离婚妻子的赡养费，等于给死马买燕麦。
	2.	Quit asking him to do you a favor . you ’ re beating a dead horse 别再求他帮你忙了，你这是白费劲。
	3.	It is useless to flog a dead horse 鞭打死马，徒劳无益。
	4.	I ' ve already made up my mind . there ' s no sense flogging a dead horse 我已经下了决心，不必再白费口舌了。
	5.	I ' ve already made up my mind . there ' s no sense beating a dead horse 我已经下了决心，不要再白费口舌了。
	6.	That guy smells like a dead horse ! - i ' m not proud of it 这家伙闻起来像匹死马！ -我觉得没什么可自豪的
	7.	- that guy smells like a dead horse ! - i ' m not proud of it -这家伙闻起来像匹死马！ -我觉得没什么可自豪的
	8.	See them there stark ballocknaked eating a dead horse s liver raw 俺瞧见过这帮人一丝不挂地正生吃一条死马的肝脏哪。 ”
	9.	You are beating a dead horse if you are trying to make him change his political views 你要想改变他的政治观点，那是徒劳无益的。
	10.	He ' s flogging a dead horse in trying to persuade people to use canals instead of roads 他拼命地劝人不要使用公路而去使用运河，真是枉费口舌。

dead horse是什么意思