cool(sb/sth)down/off
—phrasal verbwithcoolverbuk/kuːl/us/kuːl/
B2
tobecomelesshot, or to make someone or somethingbecomelesshot
（使）冷却下来，（使）降温；（使）凉快下来
Shewaiteduntil hercoffeehadcooleddown before taking asip.她一直等到咖啡凉下来才抿了一小口。
We went for aswimtocooloff.我们去游泳好凉快一下。