Valencies
n. 价, 化合价( valency的名词复数 )
🗣️ 情景例句
We communicate with each other by letter.
我们用书信彼此联系。
An ass endures his burden,but not more than his burden.
驴子能负重，过重也难负。
You forget that I was a medical student once upon a time.'
你忘了我以前是学医的了。”