A cool shower wakes up the body and boosts circulation.

冷水浴使身体振奋，促进血液循环。

《柯林斯英汉双解大词典》

For cooler (blue or green) light, you'll tell the camera to warm things up, and in warm light, you'll tell it to cool down.

对于较冷的光源（蓝或绿色），你会让相机给照片增加暖色，而在暖光源下，你要让它给照片降温。

youdao

Cool air came up through small holes in the tables.

冷空气从桌子上的小洞里吹了出来。

youdao

In contrast, Cool-er sucks up just about anything you can get onto your PC via a USB port.

FORBES: Why Kindle Will Have To Change

They were such a hit that Taco Bell postponed a follow-up Cool Ranch flavor to early this year to make sure there was enough capacity to make the shells.

WSJ: Doritos to roll out chips in 'Taco Bell' flavor

So with blue-chip European bank stocks like BNP Paribas and Barclays trading for only six and seven times trailing earnings, this might be the time for cool-headed investors to pick up strong banks at cheap prices.

FORBES: Time To Buy European Bank Stocks?