点击图片查看原图
打个简单的比方，“狗有四条腿”成立，反过来“有四条腿的就是狗”显然就是错误的了。
实际上，肚脐结扎的手法、腹腔内容物还有腹壁脂肪厚度都会影响肚脐的形状，除了个人观感以外，它既不反映你的健康状况，也不体现给你接生的医务人员的水平。咱们就放过肚脐，让它安安静静地呆在你的肚子上，作为我们曾经和母亲血肉相连的纪念吧。
第 19 天，仅有 3 枚嵌合体胚胎存活，这也是目
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