They often go potholing on Mount Huashan.

他们常在华山探索洞穴。

youdao

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。

youdao

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。

youdao