单词	contour feather
释义	contour feather noun : one of the medium-sized feathers that form the general covering of a bird and determine the external contour Example Sentences Recent Examples on the Web The contour feathers interlock and overlap with tiny barbs (actually called barbules), forming a water and windproof protective outer layer on their bodies. Cori Brown, baltimoresun.com/maryland/carroll, 20 Oct. 2019 Word History First Known Use 1867, in the meaning defined above
随便看	bothropses bothros bothroses boths bothy botnet boto Botocudo botocudos botogenin botonnée botonée botos Botox botoxed botoxing Botoşani botry- botrychia Botrychium botrychiums Botrydium botryllid Botryllus botryo-

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