Pyroclasite
羟氟磷灰石
🗣️ 情景例句
You're right.
你说得对。
I was in the hospital for several weeks.
我在医院里住了几个星期了。
In spite of national differences, certain funny situations have a universal appeal.
尽管民族不同，有些滑稽的情节却能产生普遍的效果。