Active hydrogen atom
[化] 活性氢原子
🧩 词语组成解析
active
['æktiv]
adj. 积极的，活跃的，有生气的;迅速的，敏捷的;有效的，起作用的;
n. [语法]主动语态;积极分子，活跃的人;
🗣️ 情景例句
You must've come home very late.
一定很晚才回家。
I want to make a local call.
我要打个市内电话。
As we were walking past a shop, he held a diamond firmly against the window and made a deep impression in the glass.
我们路过一家商店时，他将一颗钻石使劲地往橱窗上一按，在玻璃上留下一道深痕。