Calcifications
n. 钙化；石灰化
🗣️ 情景例句
How long is this flight?
这趟飞行有多长时间？
I considered changing my job,k but in the end I decided not to.
我考虑换个工作，但最后我决定不换了。
examined a very large number of men working on aircraft carriers:
调查了许多在航空母舰上工作的人，