congenital shortening of femur

例句：

1. 1. The congenital shortening of the femur is a condition that affects children from birth.
   股骨先天性缩短是一种影响儿童从出生就存在的条件。
2. 2. The child's congenital heart defect was diagnosed during his first checkup.
   这个孩子的先天性心脏病在第一次体检时被诊断出来。
3. 3. The researcher found evidence of congenital chromosomal abnormalities in the family.
   研究者发现这个家族存在先天性染色体异常的证据。