Allylic substitution
[化] 烯丙位取代(取代在邻接于双键的C上)
🧩 词语组成解析
烯丙基的
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
What's your major?
你是什么专业的？
Gentlemen! Can't you agree on anything?
先生们，可否赞成一项？
Please sign here to show that you have received the money.
请在这儿签字以表明你已收到这笔钱。"