Valency
[化] 化合价\\n[医] 效价; 价(化合价,原子价)
📖 牛津释义
valency
(US valence) n (chemistry 化) unit of the combining-power of atoms （原子的）（化合）价
Carbon has 4 valencies. 碳的化合价是四价.
🏥 医学释义
①效价 ②化合价
🗣️ 情景例句
I've been there several times.
我到那儿去过好几次。
I'd like to travel first-class.
我要头等舱。
You'd better check with the shipper.
你最好向货运公司查查看。