Active nitrogen
[化] 活性氮
🧩 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
Please keep off the grass.
请勿践踏草地。
I'm not accustomed to going out after dark.
我不习惯在天黑了以后去外面。
The cave led back into the rockface and the earth by the entrance was dry.
岩洞迂回延伸到岩面里，靠近洞口的土是干的。