Pericyclo-compound
[化] 架环化合物
🧩 词语组成解析
🗣️ 情景例句
Your grandfather went to the Engineering School there.
你爷爷进那个工学院。
It is no use crying over spilt milk.
泼水难收。
People are always talking about 'the problem of youth'.
人们总是在谈论“青年问题”。