他得学着控制自己的脾气。

He needs to learn to curb his temper.

《牛津词典》

如果你在忙于读书或思考事情的时候被打扰了，你必须学会控制自己的脾气，让自己不要生气。

If you are interrupted when you are busy reading or thinking about things, you have to learn to control your temper and do not get angry.

youdao

在新罕布什尔和之后的地方，遭受着所有的品格攻击，我不得不竭力控制自己的脾气，在筋疲力尽时尽量少发牢骚。

In New Hampshire and afterward, with all the character attacks, I had to fight to keep my temper in check and minimize my tendency to whine when exhausted.

youdao