congenital double lip

例句：

1. 1. The baby has a congenital heart defect that requires surgery.
   这个婴儿有先天性心脏病，需要手术。
2. 2.The scientist discovered the congenital nature of the disease.
   这位科学家发现了这种疾病的先天性特征。
3. 3. The child's behavior was congenital; he had never shown any signs of learning.
   孩子的这种行为是先天性的，他从未表现出任何学习的迹象。