单词	swiftlet
释义	swiftlet /ˈswɪftlɪt / noun A small swift found in southern Asia and Australasia. Genera Aerodramus and Collocalia, family Apodidae: many species. The edible nests of swiftlets are used in bird's-nest soup, a delicacy in some countries.... The villagers could not explain why scaffolding was required to collect bird droppings from the floor of the cave, and they were not aware of the swiftlets and their unique saliva nests. Echolocation - the trick of emitting sound pulses and navigating by accurate timing of the echoes - has evolved at least four times: in bats, toothed whales, oilbirds and cave swiftlets.
随便看	rub someone (or rub someone up) the wrong way rub someone out rub something down rub something out rubster rubstone rub-up rubus ruby ruby anniversary ruby-back ruby-backed ruby blende ruby copper ruby coral ruby-crested ruby-crowned ruby-crowned kinglet ruby-crowned wren rubydazzler ruby glass ruby-headed ruby hole Ruby, Jack ruby laser

英语词典包含243303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。