Monoterpenes
一萜类
🗣️ 情景例句
May I talk to you about something that's bothering me?
我能和你谈一件让我挺烦心的事吗？
Friends (the best of friends) must part.
好友终有分手时。
Tramps seem to be the only exception to this general rule.
在这条普遍的规律前面，