单词	swiftlet
释义	swiftlet noun swift·​let ˈswif(t)-lət  : any of various cave-dwelling swifts (genus Collocalia synonym Aerodramus) of Asia including one (C. fuciphaga) that produces the nest used in bird's nest soup Example Sentences Recent Examples on the Web In the 1990s rising incomes in China prompted a boom in demand for swiftlet saliva. 1843, 22 Nov. 2019 Tan’s nest once belonged to a swiftlet, a small bird native to caves in Southeast Asia. 1843, 22 Nov. 2019 Other prehistoric animals that dropped off the face of the Earth around that time were species of crocodiles, turtles, and several birds, like ancient flamingo-like palaelodids, swiftlets, pigeons, parrots, and shorebirds. Gavin Mouldey, National Geographic, 11 Jan. 2018 Efforts to provide protection for swiftlets against international trade have failed, and an investigation in 2000 by the San Francisco Chronicle reported that in some areas, there are only one-third as many nests as in 1990. National Geographic, 1 Feb. 2016 Word History First Known Use circa 1890, in the meaning defined above
随便看	tumor-suppressor gene tumoral tumored tumorigeneses tumorigenesis tumorigenic tumorigenicities tumorigenicity tumorlike tumorous tumors tumour tumoured tumours tump tump (over) tump over tumped tumped (over) tumped over tumphy tumping tumping (over) tumping over tumpline

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