Calcarea fluorica
[医] 萤石
🧩 词语组成解析
[医] 钙质纲
🗣️ 情景例句
I like it,
我觉得不错。
I know the boy whose father is a merchant.
我知道那个男孩的父亲是商人。
OK. Could you take it to the classroom?
好，那你能搬到教室里吗？