名词挖坑; 挖洞; 探勘地上坑洞(运动)
1. She's going potholing at the weekend.
她周末要去参加洞穴探险运动。
2. Cave exploration, or potholing, as it has come to be known, is a relatively new sport.
山洞探险,或人们通常称之为洞穴探险,是一项比较新的运动。
1. 洞穴探险
Potholing is the leisure activity of going into underground caves and tunnels.