Fluoroalkane
[机] 氟烷
🗣️ 情景例句
There are so many things to consider.
是有许多事情要考虑。
That's a tough question to answer.
那是一个很难回答的问题。
Not too bad.I think I passed in English and Mathematics.
不算太坏，我想我的英语和数学及格了。