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yolk-sac英英字典_yolk-sac剑桥英语解释_yolk-sac柯林斯英文解释_食材鋪反向词典
食材鋪反向词典

yolk-sac

Y 开头单词

柯林斯词典

    yolk sac

  • 1. N the membranous sac that is attached to the ventral surface of the embryos of birds, reptiles, and some fishes and contains yolk 卵黃囊[zoology]

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