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vitelline sac是什么意思，vitelline sac的翻译，vitelline sac音标、读音、用法和例句_按摩法牛津词典
按摩法牛津词典

vitelline sac

V 开头单词

同根派生

     

英汉例句

  • The yolk sac is gradually vascularized.
    卵黄囊逐渐被血管化了。
  • The gonads form from a group of large granulated yolk sac cells which invacle the germinal ridges.
    性腺是由一群大的颗粒的卵黄囊细胞入缀生殖峭而形成。