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1·He sent me on a fool's errand.

他派我去干白费力的事。《牛津词典》

2·A fool's errand, you say.

你会说，这还真是愚蠢的行为。

3·Many believed this was a fool's errand.

许多人认为是做蠢事。

4·My friend, he began, you are on a fool's errand .

“我的朋友，”他说，你在履行一个愚蠢的职责。

5·So I'd agree with you. A fool's errand, no doubt about it.

所以我同意你的话，我这些举动还真是愚蠢行为，毫无疑问。

6·Even in quiet times, predicting the paths of exchange rates is a fool's errand.

即便在市场平稳的时候，预测汇率走势也是一件费力不讨好的事。

7·Predicting exactly when is a fool's errand, but the warning signs are accumulating.

预测准确的时间点是徒劳的，但是警告信号正在累积。

8·Gibbs: Jack, it's a fool's errand. Well, you know better than me the tales of the Black Pearl.

杰克：我想去寻找黑珍珠。我知道黑珍珠在哪儿。我会找到它的。

9·The people who advised to come to me for money sent you on a fool's errand. I never lend money.

建议我们到这儿来借钱的人让你白跑了一趟了，我从不借钱。

10·Billions of dollars have been spent on long-range weather forecasting, but it is a fool's errand.

数十亿美元花在远程气象预报上是一个劳而无功的事。