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.

冲个冷水澡帮助那些体温过高的运动员降了降温。

A cold shower helped to ___cool ___off the overheated players.

她在回应前做了几次深呼吸让自己冷静下来。

She took a few deep breaths to ___cool ___off before responding.