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单词 secondary feather
释义

secondary feather

noun
Any of the flight feathers growing from the second joint of a bird’s wing.Their long, narrow primary feathers and short secondary feathers allow for rapid flight and gliding....
  • Chicks hatch with well-developed primary and secondary feathers.
  • Bohemian Waxwings are sleek, masked birds with unusual red, waxy deposits at the tips of their secondary feathers.
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更新时间:2024/9/22 1:26:27