It's too hot to wear a jacket or vest in the summer, or in overheated museums, stores, restaurants, planes, and trains in the winter.

在夏天，或者冬天在一间过热的博物馆，商店，旅馆，飞机和火车上，穿一件夹克或背心都太热了。

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Temps can be 10-to-15 degrees cooler than in nearby San Francisco, so bring a jacket, even on hot days.

比起临近的三藩市，这里的温度约低10至15华氏度，即使在炎热的时候出行，也要带上一件夹克。

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I need a Java jacket for this coffee. It's too hot!

我需要一个防热护套拿这杯咖啡。它太烫了！

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At a recent performance at a New York jazz club, Harrell showed up looking trim in a leather jacket and sunglasses--even though it was a hot, dark summer night.

FORBES: Jazz, Schizophrenia And Side Effects