Pentafluoride
五氟化物
🗣️ 情景例句
your doing this for Michelle and her friends.
你为 Michelle和她的朋友所做的这些。
My watch is fast and your watch is slow.
我的表快，而你的表慢。
My wife wants go to Egypt.I'd like to there, too.
我妻子想到埃及去，我也想去那儿。