Calcarea fluorica
[医] 萤石
🧩 词语组成解析
[医] 钙质纲
🗣️ 情景例句
How did he get to be a department head so fast?
他怎么这么快就成为一个部门的主管？
The one on your right.
你右边的那个。
Try and stand up.Can you stand up?
试试站起来。你能站起来吗？