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
Don't worry, be happy.
别担心，开心点。
Punctuality is the soul of business.
严守时间是办事情的重要原则。
The cry had certainly come form one of the chimneys, but as there were so many of them, the fire fighters could not be certain which one it was.
喊叫声肯定是从烟囱里传出来的，然而，因为烟囱太多，消防队员无法确定到底是哪一个。