Phosphosilicate
磷硅酸盐
🗣️ 情景例句
I sure do. It was fun.
当然。当时真有意思。
Why didn't you write me?
为什么你不给我写信？
The Hubble telescope was launched into space by NASA on April 20,1990 at a cost of over a billion dollars.
哈勃望远镜于1990年4月20日由国家航空航天局发射升空，耗资10多亿美元。