Calcium orthosilicate
[机] 原硅酸钙
🧩 词语组成解析
正硅酸盐
🗣️ 情景例句
Richard tells me you're a doctor.
Richard告诉我您是医生。
What time's the next train to Washington?
下一趟去华盛顿的车几点开？
He's upstairs.He's having a bath.
他在楼上。他正在洗澡。