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To argue with him is like beating the air.

和他辩论是气力。

Save your breath to cool your porridge.

不要口舌了。

In making that plea he will breathe in vain.

他做那种恳求是口舌的。

I feel like I’m just wasting my breath trying to explain things to him.

我觉得跟他解释简直是唇舌。

Our labour will not be lost.

我们的努力不会。

Trying to sell overcoats in midsummer is a real mug's game.

夏天衣, 真是力气。

Mr. Taylor’s present behaviour stultifies his previous efforts.

泰勒先生前的行为使他过去的努力了。

I tried to chuff her up in vain.

我想让她高兴起来,但是力气。

Hurling his arms and legs about wildly, he kept afloat but wasted much effort.

他用胳膊和腿在水中乱划, 这样虽可以漂浮, 但却了许多力气。

All my efforts were vain.

我的一切努力都了。

Pam’s flogging a dead horse trying to organize the theatre trip. It’s quite obvious that nobody’s interested.

帕姆想组织剧团巡迴演出，无疑是心机。很明显没有人感兴趣。