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单词 egg tooth
释义 egg toothn.(名词)
  1. A hard, toothlike projection from the beak of embryonic birds, or from the upper jaw of embryonic reptiles, that is used to cut the egg membrane and shell upon hatching and that later falls off.(破)卵齿:从胚胎鸟的喙或胚胎爬虫的上颚长出的坚硬的、齿状的突出物,用于孵化时敲破卵膜和卵壳以使其脱落
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更新时间:2026/2/9 4:16:59