Contact catalyst
[化] 接触催化剂
🧩 词语组成解析
contact
['kɑntækt]
n. 接触;触点;[医]（传染病）接触人;门路;
vt. 使接触;与…联系;与…通讯（或通话）;
vi. 联系，接触;
con共同+tact接触→共同接触 → 接触；联系
🗣️ 情景例句
Rotten weather, isn't it?
天气糟透了， 不是吗？
How did it come to this?
岂有此理！
They help their parents to open their stockings, too.
他们还帮助父母打开他们的袜子。