Fluomethane
氟代甲烷
🗣️ 情景例句
Make it a double!
加倍。
I will be going to school in a few weeks from now.
我将在几个星期后上学去。
Sorry, I haven't. Why don't you ask Jim.
对不起，我没见。你为什么不去问问吉姆呢？