Covalent compound
[化] 共价化合物
🧩 词语组成解析
a. 共有原子价的, 共价的
🗣️ 情景例句
Good-bye.
再见。
I like to gaze at the setting sun in the evening.
我喜欢在傍晚观赏晚霞。
Squeezing through a cleft in the rocks, the pot-holers arrived at an enormous cavern, the size of a huge concert hall.
洞穴探险者从岩石缝里挤身过去，来到一个巨大的洞里，其大小相当于一个音乐厅。