Catalyst damage
[化] 催化剂中毒
🧩 词语组成解析
🗣️ 情景例句
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
My name is Li Lei. I'm in Row 1, too. I'm Number 3.
我叫李磊。我也是第一排。我是3号。