Nuclear substitution
[化] 环上取代; 环上取代作用
🧩 词语组成解析
substitution
[ˌsʌbsti'tju:ʃən]
n. 代替;代用;替换;<化>取代（作用）;
🗣️ 情景例句
She majored in math and physics at university.
她在大学里主修数学和物理。
Charity begins at home, but should not end there.
仁爱须由近及远。
You are out of your mind.
你脑子有毛病！