Elephants, rhinos, and hippos don't have fur. They all live in hot places, where the trick is to keep cool.

大象、犀牛和河马都没有毛皮。他们都住在炎热的地方，在那里生活的诀窍就是保持凉爽。

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The net result is a continuous flow of gas, starting as hot gases in intergalactic space and ending as a drizzle of cool gas called a "cooling flow," falling into the central galaxy.

最终的结果是一股持续的气体流，开始是星系间的热气体，结束时是一股被称为“冷却流”的少量冷气体，落入星系中央。

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One of the best ways to cool off on a hot summer day is to jump into a swimming pool.

在炎热的夏天，最好的降温方法之一是跳进游泳池。

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"Ahh!" July may be hot but another cool hit may be coming with the movie "Ice Age" This is the third in the "Ice Age" animated series.

VOA: special.2009.06.12

The beach for most Australians is not just a place to cool off on a hot day, it is a place for the tentative dips of the toes in the shallows of early childhood and a place where teenage rites of passage played out.

BBC: Shore thing: Australia��s beach obsession

This is a process, and we will continue to test and try new things until we find a cup that keeps drinks hot, hands cool and is better for the planet.

CNN: N.Y. mayor seeks ban on plastic foam containers

Maybe the soil out there is so rich, the days so hot and the nights so cool and crisp, that a 12, 000-pound potato is within the realm of possibility.

WSJ: At the Intersection of Yoko and Idaho