cool down|cooled down

激烈的辩论过后，他花了一些时间才冷静下来。

After the intense debate, it took him a while to ___cool ___down.

她等到咖啡凉下来，然后喝了一小口。

She waited until her coffee had ___cooled ___down and then took a sip.

你应该先让热汤凉下来再吃。

You should ___cool the hot soup ___down before eating it.