单词	spelunking
释义	spelunkingspe‧lunk‧ing /spəˈlʌŋkɪŋ/ noun [uncountable] American English Word Origin WORD ORIGINspelunking Origin: 1900-2000 Latin spelunca ‘cave’, from Greek spelynx the sport of walking and climbing in caves—spelunker noun [countable]
随便看	flowering flowerpot Flowerpot Men, The flower power flowery flowing flown fl oz flu flub fluctuate fluctuation flue fluency fluent fluently fluff fluffy fluid fluidity fluid ounce fluke fluky, flukey flume flummox

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