Dealkylate
[机] 脱烷烃
🗣️ 情景例句
Keeping busy. Yourself?
一直很忙，你呢？
My friend spent his childhood in California .
我的朋友在加利福尼亚度过了他的童年。
Yes, it is an old photo of my family.
是的，是我们家的一张老照片。