C2 noun #78,497 最常用

the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon

fertilization membrane 30秒了解

  • (noun) the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon

Meanings

  1. 1
    noun the membrane that forms around a fertilized ovum and prevents penetration by additional spermatozoon
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