Activating agent
[化] 活化剂
🧩 词语组成解析
[计] 启动
🗣️ 情景例句
I'm fresh out of college.
我刚从大学毕业。
I'm playing with the dog downstairs.
我在楼下和狗玩。
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。