单词	spelunker
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	night watchman nightwear nignog nihilism nihilist nihilistic Nijinsky, Vaslav -nik Nike Nikkei index nil Nile Nilotic Nilsen, Dennis nimble nimbleness nimbly nimbus nimby NiMH nimrod Nin, Anais nincompoop nine ninepins

英语词典包含52748条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。