Cavitron
n. 一种无痛穿孔锥
🗣️ 情景例句
I was relieved of my position.
我被撤职了。
I didn't see Mr. Jones,but I saw John Smith.
我没看见琼斯先生，但是我看见了约翰·史密斯。
Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
洞穴勘查——或洞穴勘探——是一项比较新的体育活动。