Hexafluoride
n. 六氟化物
🗣️ 情景例句
What's that, Mr. Carlson?
什么事， Carlson先生？
Which would you rather do--go dancing or go to a play?
你将去跳舞还是去看戏？
I'm afraid that Jim will miss a lot of his lessons.
恐怕这么一来，吉姆要缺很多课了。