inutero

例句：

1. 1.The embryo is the first stage of development in a fertilized egg.
   受精卵是发育的第一阶段。
2. 2. Inutero cephaly is a condition where the head and neck are larger than the rest of the body.
   先天性头颈大症是一种状况，其中头部和颈部比身体其他部分更大。
3. 3. Some scientists believe that inutero cephaly may be caused by environmental factors such as pollution or radiationexposure.
   一些科学家认为，先天性头颈大症可能是由环境因素如污染或辐射暴露引起的。