Active valence
[化] 有效化合价
🧩 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;
valence
[['veiləns]]
n. 原子价\\n[化] 化合价; 原子价
🗣️ 情景例句
Thank you very much.
非常感谢。
By doing nothing we learn to do ill.
懒散学为非。
Perhaps the most extraordinary building of the nineteeth century was the Crystal Palace, which was built in Hyde Park for the Great Exhibition of 1851.
19世纪最不寻常的建筑也许要数水晶宫了，它是为1851年的“世界博览会”而建在海德公园的。