Katalyst
n. [化] (=catalyst)催化剂
🗣️ 情景例句
Governments wage a constant war against counterfeiting.
政府掀起持久的打假活动。
First catch your hare, then cook him.
不要谋之过早。
One of the first things Annie did was to teach me how to play.
安妮首先要做的事情之一，就是教我如何耍。