Karstenite
硬石膏
🗣️ 情景例句
Philip had to go back to the hospital. Philip
必须要回医院。
Between two stools one falls to the ground.
脚踏两头要落空。
I'm changing my hotel. I'll drop in and leave the new address.
我就要换一家旅馆了。我会顺便再来一趟，把新地址留下来的。