Calcifications
n. 钙化；石灰化
🗣️ 情景例句
You pay there. I have the next group to go down. I'll see you soon then.
你在那儿付钱。我带的下一个团就是要下去的。回见！
I was on the track team 10 years ago.
十年前，我在田径队。
Since the sea covers the greater part of the earth's surface,
既然海洋覆盖着地球的大部分表面，