pot·hol·ing
noun/ˈpɒthəʊlɪŋ/
/ˈpɑːthəʊlɪŋ/
(British English) (North American English spelunking, caving British and North American English)
[uncountable]- the sport or activity of going into caves under the ground
洞穴探察；洞穴探险 - to go potholing
去探索洞穴
- to go potholing