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
Payment by instalments is one of the terms of payment that has been accepted.
分期付款是通常被接受的一种付款方式。
Who is calling?I don't recognize your voice.
谁打来的电话？我听不出你的声音。
Good afternoon, class! Who's on duty today?
同学们，下午好！今天谁值日？