Valence bond
[计] 价键
🧩 词语组成解析
valence
[['veiləns]]
n. 原子价\\n[化] 化合价; 原子价
🗣️ 情景例句
that will bring parents and teachers together once a week
让家长们及教师每星期一次
I hesitate to ask you, but will you lend me some money?
也许我不该问你，你能借我一些钱吗？
New jobs are needed because a number of people are out of work.
因为许多人没有工作，所以需要为他们提供就业机会。