Bivacancy
(在原子外壳中的)双空位
🗣️ 情景例句
And I didn't sleep well, Daddy told me.
而我总是睡不好。爸爸告诉我的。
An idle youth,a needy age.
少壮不努力，老大徒伤悲。
No, it's too small. Let's go to the farthest instead. It's more interesting.
不，那个太小了。还是去最远的那个吧。那更有趣！