Berzelius theory of valency
[机] 伯杰利斯价键理论
🧩 词语组成解析
伯齐利厄斯(Baron JГns Jakob, 1779-1848, 瑞典化学家, 化学符号创制人)
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
[化] 化合价\\n[医] 效价; 价(化合价,原子价)
🗣️ 情景例句
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She began playing the violin when she was nine.
九岁的时候，她开始拉小提琴。
Chaplin was born in London in 1889 and first acted when he was five years old.
卓别林1889年出生于伦敦，5岁时就开始演戏。