He's learned how to calm himself down.

他已经知道怎样使自己平静下来。

youdao

Then when I thoroughly demoralized, and lying around unmotivated, everything else in my life seems to calm down, and I’m just left wondering how to pick myself up again.

然后当我彻底沮丧且完全没有动力的时候，生活中所有的一切是似乎都需要平静下来，我只想知道我改如何再一次让自己振作起来。

youdao

Once the game started, I tried to calm him down by showing him how to mark the scorecard and keep track of every play.

比赛一开始，我就试图让他安静，告诉他怎么记分，怎么看队员的每一个动作。

youdao

Now the administration thinks it can sit down with these energetic sponsors of terror and calmly discuss how to calm the mayhem in Iraq?

ECONOMIST: George Bush now wants to talk to the axis of evil.