Carbocation
碳阳离子
🗣️ 情景例句
He's an exceptionally fine young man and should be a good husband.
他是一个很好的年轻人将来也会是一位好丈夫的。
There's a chance he won't be able to be home for Christmas.
他不能回家过圣诞节有偶然性。
Yes. What is it?
有。什么事？