Nucleus substitution
[化] 环上取代反应
🧩 词语组成解析
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
Your grandfather went to the Engineering School there.
你爷爷进那个工学院。
My brother used to speak French to me all the time.
我的兄弟过去总是对我说法语。
No, thank you. Tom.I've already had lunch.
不，汤姆，谢谢。我已经吃过饭了。