Phosphosilicate
磷硅酸盐
🗣️ 情景例句
It's about my grandfather.
是关于我爷爷。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
This is a good photograph.Who are these people?
这是一张很好的照片。这些人是谁。