Covalent formula
[建] 共价式
🧩 词语组成解析
a. 共有原子价的, 共价的
formula
['fɔ:mjulə]
n. 公式，准则;客套话;方案;婴儿食品;
🗣️ 情景例句
Richard says Max is twenty-one inches long. Richard
说Max是二十一英尺长。
I'm going to have some x-rays taken.
我要拍摄Ｘ光照片。
So he took off the second shoe and put it under his bed very quietly.
他脱下第二只鞋子，轻轻地放在床下边。