Bond order
[化] 键级
🧩 词语组成解析
order
['ɔ:də]
n. 命令;秩序;规则，制度;次序;
vt. 命令;订购;整理;
vi. 下订单;
🗣️ 情景例句
I'd never been away from home,
我从来没有离开过家，
He that has a tongue in his head may find his way anywhere.
遇事多问，随处可行。
All we have to do is sign the contract.
剩下的只要签订个契约就行了。