congenital auricular pit

例句：

1. 1.The child's congenital hearing loss is a concern for his parents.
   这个孩子的先天性听力丧失让父母很担心。
2. 2.The scientist discovered the congenital genetic disorder that affects many children.
   这位科学家发现了一种影响许多儿童的先天性遗传病。
3. 3.The researcher found evidence of congenital malformations in the fetuses.
   研究者在胎儿身上发现了先天性畸形的证据。