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
I'm afraid it just isn't good enough.
恐怕这不够好。
To be mugged
被袭击
I was doing some exercises on the high-and-low bars. When I landed, I fell forward and hurt myself. Someone was standing too close and I knocked into him and fell over onto my shoulder.
我当时在高低杠上练习。落地时向前摔倒受了伤。有人站的离我太近，我撞在他身上，跌了一跤，肩膀也受了伤。