Calcicrete
钙结砾岩; 钙质壳
🗣️ 情景例句
Technology has totally changed our life over the past two decades.
在过去的二十年里，科学技术已经完全改变了我们的生活。
It sucks!
好烂！
It is our satellite. It is quite near us in space.
它是我们的卫星。它离我们相当近，仅38万公里远。