白费力气

With that kind of man you will plead in vain.

你恳求那种人将是白费力气.

He was really just ploughing the sand.

他不过是在白费力气.

You are banging your head against a brick wall.

你在白费力气.

Disconsolate, Soapy ceased his unavailing racket.

索比怏怏不乐地停止了白费力气的闹嚷.

I was singing in a vain effort to cheer him up.

我唱歌试图让他高兴起来，结果是白费力气。

Selling refrigerators to the Eskimos is like carrying coals to Newcastle.

向爱斯基摩人推销电冰箱简直是白费力气.

He declared it was of no use to work on his farm.

他对人家说,在自己的田里干活是白费力气.

Little did they know that these talks were always an exercise in total futility.

他们几乎不知道,这种会谈往往都是白费力气,毫无成效.

With our limited budget you are beating your against abricka pay raise.

凭我们有限的预算,你想请求加薪,是白费力气.

He declared it was no use to work on his farm.

他曾扬言,在他的农场干活是白费力气.

You're flogging a dead horse by asking him to lend you money.

你向他借钱是白费力气.

In vain did they try to persuade him to join the club.

(全句否定)他们力图劝说他加入这个俱乐部,经果白费力气.

Hammond's check cleared, or I wouldn't go on this wild-goose chase.

哈蒙德的支票兑现, 我才肯去追踪猎物.否则不是白费力气.

Harry wondered if Potts had deliberately sent him on a wild goose chase.

哈里疑心波茨故意让他白费力气地瞎找一通。

I feel like I'm knocking my head against the wall.

我感觉我是在白费力气.