Whatever water quality all the effort will be wasted if diseases are brought in.

Her efforts were rendered futile by her own illness.

她因为生病而前功尽弃.

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Each one must do his utmost or the labour of all is vain.

每个人都必须竭尽全力,否则就要前功尽弃.

名作英译部分

It might mean undoing years of work.

这可能意味着多年的工作前功尽弃.

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This caused the utmost anxiety and rendered all concentration futile.

这引起了莫大的焦虑,而且使一切力量的集中都前功尽弃.

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Far from backing down , he pressed the attack ( Justin Kaplan )

他非但不打退堂鼓,反而竭力推行这次行动 ( 查士丁卡普兰 )

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So many times I've been told something can't be done.

许多人一遇到障碍就打退堂鼓.

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Please try to back out now that everything has been arranged.

现在一切都安排好了,请不要打退堂鼓.

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But after all I could not recede.

但是我毕竟不能打退堂鼓.

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I know that I will not be able to go backward.

我知道我是不会打退堂鼓的.

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The trial was stopped and the results declared invalid.

审判被中止，判决结果被宣布无效。

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The authorities have abandoned any attempt to distribute food.

当局中止了分发食物的尝试。

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Spring's light foot has gone.

春天的脚步却戛然而止.

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But after replacing 1.7 edition 2004, stop abruptly.

但是2004年更新到了1.7版之后戛然而止.

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That it can all end, even when you least want it to.

而它可能在你最不想让它结束的时候戛然而止.

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The scandal threatened an abrupt end to a promising political career.

这个丑闻有可能使原本大有前途的政治生涯戛然而止.

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But the period of rising prosperity is coming to an abrupt end.

可惜这个繁荣发展期却也戛然而止了.

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Here the narrative breaks off.

故事讲到这里戛然而止.

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The recession brought an abrupt halt to this happiness.

经济衰退让这幸福戛然而止。

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Talk now died a sudden death -- on the Foster side.

可是,话头还没展开,就戛然而止 —— 责任全在福斯特家一方.

英汉文学 - 三万元遗产

Why cut the money off?

为什么中断资金的供应？

《柯林斯高阶英汉双解学习词典》