Lewis structure
[化] 路易斯结构
🧩 词语组成解析
n. 吊楔
🗣️ 情景例句
so that we can record our thoughts about the trip.
以便我们能录下旅行中的感想。
You cannot judge a tree by its bark.
人不可貌相。
Walking up and down the stairs would beat any exercise machine.
上下楼梯可比什么健身器都要好。