Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
His daughter is sick.
他女儿生病了。
If one side fails to observe the contract,the other side is entitled to cancel it.
如果一方不履行合同协议，另一方则有权终止合同。
I'm twelve. What's your name, please?
12岁了。请问您叫什么名字？