duplication of lobules

例句：

1. 1.The study found that the duplication of lobules was associated with an increased risk of breast cancer.
   研究发现，乳腺的复制与乳腺癌的风险增加有关。
2. 2. During pregnancy, the duplication of lobules occurs as a result of the uterus stretching and preparing for childbirth.
   怀孕期间，乳腺的复制是由于子宫拉伸和为分娩做准备而发生的。
3. 3. The duplication of lobules can lead to a condition known as fibrocystic breast disease, whichaffects women in their 40s and 50s.
   乳腺的复制可能导致一种称为纤维囊性乳腺病的状况，这种状况影响的是40岁到50岁的女性。