Valence shells
[电] 价层
🧩 词语组成解析
valence
[['veiləns]]
n. 原子价\\n[化] 化合价; 原子价
n. 贝壳（shell的复数）
🗣️ 情景例句
Dinner's on me.
晚饭我请客。
The chances for a promotion look really good, but before I get too old I want to see the world.
提升的机会确实无可挑剔，但是在我变得太老之前，我想去看看世界。
The man lay on the road. Luckly, he was not badly hurt. But he could not move.
他躺在路上。幸好他伤得不重。但他不能动。