Karstenite
硬石膏
🗣️ 情景例句
I'm a foreign student, and I'd like to make some new friends.
我是个外国学生， 我想交几个新朋友。
They have brought wine with them to the dinner party.
他们为晚宴带来了美酒。
'You certainly did give me a surprise!' said the vicar.
“你确实使我大吃了一惊！”牧师说，