Alpha-substitution
[化] α-取代
🧩 词语组成解析
alpha
['ælfə]
n. 希腊字母的第一个字母;
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
As soon as he left his table.
他刚离开桌子。
You're so lame!
你真笨！
I have pressing business to attend to.
我有紧急的事情要处理。