It's no use pumping a dry well.

涸井汲水,无济于事.

辞典例句

A dream will draw water out of a dry well!

梦想能从枯井中抽水出来!

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Should be maintained around the unit clean and dry, well - ventilated.

机组周围应保持清洁干燥, 通风良好.

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Tell her to wash it in yonder dry well.

告知她在遥远的枯井中把薄衫洗浣.

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One day a farmer's donkey fell into a dry well.

一天,一位农夫的驴子掉进一口枯井.

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Storage Store closed containers in a cool, dry, well - ventilated area.

贮存密封储存在阴凉 、 干燥 、 通风良好的地方.

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It is no use pumping a dry well.

干井中抽水,徒劳无功.

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As a result, the stacking of paper be clean and dry, well ventilated.

因此, 堆放纸张的地方必须清洁干燥, 通风良好.

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Storage Store closed containers in a cool, dry, well - ventilated area. Avoid exposure to direct sunlight.

贮存密封储存在阴凉 、 干燥 、 通风良好的地方. 避免阳光直射.

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