单词	scuba diving
释义	scuba divingscuba diving /ˈskubə ˌdaɪvɪŋ/ noun [uncountable] Etymology ETYMOLOGYscuba diving Origin: 1900-2000 self-contained underwater breathing apparatus the sport of swimming under water while breathing through a tube that is connected to a container of air on your back [Origin: 1900–2000 self-contained underwater breathing apparatus]—scuba diver noun [countable]
随便看	Caucasus Mountains, the Caucasus, the caucus caudillo caught cauldron cauliflower cauliflower ear caulk causal causality causally causation causative causatively cause 'cause cause and effect cause célèbre causeway caustic caustically caustic soda cauterize caution

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