Polyfluorination
多氟化反应
🗣️ 情景例句
You think I can just skip it now and get to it at college?
你想我现在略过数学， 等到上了大学再学， 可以吗？
I've put on my uniform. Let's go!
我穿上制服了，走吧！
I'll go.I think it's my friend.
我去开门，我想是我的朋友。