Electrocyclic reaction
[化] 电环化反应; π键环化反应
🧩 词语组成解析
🗣️ 情景例句
this community can do anything to benefit its citizens,
这个社区可做任何造福居民的事情，
A man without a friend is only half a man.
无友的人只能算半个人。
Class 3 did very well in the school sports meeting last week.
“3班在上星期的校运会上表现很好。