spelunking
noun /spəˈlʌŋkɪŋ/
/spəˈlʌŋkɪŋ/
(North American English) (especially British English caving, British English potholing)
[uncountable]- enlarge imagethe sport or activity of going into caves under the ground
洞穴探察;洞穴探险 词源1940s: from obsolete spelunk ‘cave’ (from Latin spelunca) + -ing.