Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
Leave well enough alone.
得过且过，见好就收。
No need to discuss!
免谈！
First it made a circle to the right, then to the left.
令他吃惊的是，蜜蜂开始在蜂窝的表面表演一种舞蹈。