Calcarea carbonica
[医] 牡砺壳制碳酸钙, 碳酸钙
🧩 词语组成解析
[医] 钙质纲
🗣️ 情景例句
I type about 40 words per minute.
一分钟我能打40个字。
A great ship asks deep water.
巨轮寻深水而航行。
'And where were you at the time?'
“那你当时在什么地方？”