Lithotope
岩石沉积环境
🗣️ 情景例句
He was ill at ease with people whom he didn't understand.
他和不熟悉的人在一起感到不自在。
I'm Donald. We met the last time you visited Taiwan.
我是唐纳德，上次你来台湾时我们见过面。
Yes, I have.
有，看过了