Allylic substitution
[化] 烯丙位取代(取代在鄰接于雙鍵的C上)
?? 詞語組成解析
烯丙基的
substitution
[?s?bsti'tju:??n]
n. 代替;代用;替換;<化>取代（作用）;
??? 情景例句
There's been another scandal in the Royal family.
皇室又出丑聞了。
A good name keeps lustre in the dark.
好的名聲在黑暗中也會光芒四射。
I don't think you are right.
我認為你是不對的。