Calclithite
碎屑灰岩; 钙质石屑岩; 灰屑岩
🗣️ 情景例句
It will be my great pleasure, Marilyn.
我也会很愉快的， Marilyn。
In prosperity think of adversity.
居安思危。
Even if a piped water supply is safe at its source,
既使管道供水系统在水源处是安全的，