Calcarea sulfurata
[医] 硫化石灰, 硫化钙
🧩 词语组成解析
[医] 钙质纲
🗣️ 情景例句
she'll help me find another dog.
她会帮我另外找一只狗。
That's a book.
那是一本书。
Could you direct me to the station, please?
请问到车站怎么走？