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
Oh, Susan, thank you so much
噢 ，Susan ，谢谢你。
She's free on Friday and Saturday.
她周五和周六有空。
With these words the tiger jumped into the river. He did not come out again.
说完这些话，老虎就跳进河里去了。他再也没有上来。