The inner cells form a flattened circular shape called the embryonic disk, which will develop into a baby.

内层细胞形成扁圆形的胚胎盘，拍胎盘将会发育成胎儿。

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The inner cells form a flattened circular shape called the embryonic disk, which will develop into a baby.

内层细胞形成扁圆形的胚胎盘，拍胎盘将会发育成胎儿。

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