| 单词 | spelunking | 
| 释义 | Definition of spelunking in English:spelunkingnounspɪˈlʌŋkɪŋspəˈləŋkɪŋ mass nounNorth American 
 Derivatives
 noun spɪˈlʌŋkəspəˈləŋkər North American Origin1940s: from obsolete spelunk 'cave' (from Latin spelunca) + -ing1. Rhymestrunking Definition of spelunking in US English:spelunkingnounspəˈləŋkɪŋspəˈləNGkiNG North American 
 Origin1940s: from obsolete spelunk ‘cave’ (from Latin spelunca) + -ing.  | 
	
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