Water from a rain puddle or a mountain stream would quench his thirst and cool his hot dry throat.

雨水坑或山涧里的水可以解渴，清凉他干热的喉咙。

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Maybe he's trying to cool off out there in the rain.

可能他是想在外面的雨中凉快一下。

《柯林斯英汉双解大词典》

I wish it would rain and cool off.

我希望天能下雨，凉快一点。

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As he handed the basket to his wife, a sudden rush of cool rain put out the fire.

VOA: special.2009.02.28

A cool rain forced the official arrival ceremony indoors.

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With the right combination of daytime heat and a smattering of light rain at night to cool the soil, they stand a chance of creating a standout vintage.

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Their purpose is to drain off rain water properly and to cool and show off the huge engine.

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As wine producers, the family is at the mercy of nature but every now and then the right amount of sun, rain, warm days and cool nights will work to produce the perfect grape.

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