Active hydrogen
[机] 活性氢
🧩 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
He's not making much progress with his English.
他的英语进步不大。
Here you are , please check.
给你，请查一下。
Sure! But why don't you come with me?
当然可以！但你为什么不同我一起去呢？