Covalent crystal
[化] 共价晶体
🧩 词语组成解析
a. 共有原子价的, 共价的
🗣️ 情景例句
Give my best to your parents.
替我向你父母问好。
How long have you studied English?
你学英语多久了？
It has never been explained why university students seem to enjoy practical jokes more than else.
谁也弄不清为什么大学生好像比任何人都更喜欢恶作剧。