Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
It's been very nice talking to you.
很高兴与你交谈。
I left very early last night, but I wish I hadn't left so early.
我昨晚离开得非常早，但我希望我没有离开那么早。[大学英语六级]
He made the first telephone.
他发明了第一部电话。