He had to learn to temper his enthusiasm.是什么意思？

He had to learn to temper his enthusiasm.

他得学着给自己的热情降温。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

learn

vt.& vi. 学习，学会，习得，得知，记住；vt. 记住，学习，得知，认识到；vi. 学习，获知；

例句
Some parents believe a boy must learn to stand up and fight like a man.
有些父母认为男孩子必须学会像男子汉一样顶天立地，勇于抗争。

temper

n. 性情，脾气，特征，（钢等）回火，怒气；vt. 调和，使回火，锻炼，缓

例句
He was about to lose his temper but checked himself in time...
他刚要发火，不过又及时克制住了。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

enthusiasm

n. 热情，热忱，热衷的事物，宗教的狂热；

例句
I'm depressed by the bovine enthusiasm of the crowd's response.
人群毫无热情的迟钝反应使我感到很沮丧。