Demoid
a. 某地质层组特有的
🗣️ 情景例句
But his teeth hurt, and he just can't get to sleep, poor dear.
但他的牙疼， 他不能入睡， 可怜的小宝贝。
He has graciously consented to speak to us on that subject tonight.
他同意今晚他将就这一专题演讲。
I seldom have any difficulties.
我很少碰到困难。