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
Drive carefully.
开车时小心。
Can I fix an overseas call to London by person-to-person call?
我要打到伦敦的叫人电话好吗？
For them discipline in one form or another is the most hopeful path.
对他们来说，用某种形式的纪律约束他们一下才能有希望使他们走上正道。