potholing
n. 洞穴探索
v. 进行洞穴探险（pothole 的 ing 形式）
例句
They often go potholing on Mount Huashan.
他们常在华山探索洞穴。
Cave exploration, or potholing, as it has come to be known, is a relatively new sport.
洞穴勘察-或者洞穴勘探(人们已经熟悉了这个词语)-是一项较新的运动。
