Karstenite
硬石膏
🗣️ 情景例句
I've been busy all day.
我今天一整天都非常忙。
Who would you name as the greatest poet of our time?
你认为当代最伟大的诗人是谁？
It took great imagination as well as patience for Annie to teach me to speak.
教我说话需要极大的想像力和耐心。