He was warm from running.

他跑得暖和起来了。

youdao

If you really like to get right into your groove when you start running, warm up before you head out from your run or jump on the treadmill.

要是你真的喜欢一开始跑就进入节奏的话，在跑步或上跑步机前先热热身吧。

youdao

If you tend to suffer from side stitches, try to avoid eating within one hour of running. Make sure that you always warm up before your runs.

如果你想远离岔气，试着避免在跑步前一个小时内吃东西。确保你一直在跑步前进行热身。

youdao

Stuck drivers peeked out from time to time, running their cars intermittently to warm up as they waited for help.

WSJ: New Yorkers tell of hours stranded on snowy roads