Active chlorine
[化] 活性氯\\n[医] 有效氯, 活性氯
🧩 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;
chlorine
[['klɔ:ri:n]]
n. 氯\\n[化] 氯Cl
🗣️ 情景例句
Not at all.
绝不是
Do I have to go to a hospital?
我应该住院
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。