endosite

例句：

1. 1. The endometrium is the lining of the uterus and plays a crucial role in fertility.
   子宫内膜是子宫的内层，对生育起着至关重要的作用。
2. 2. During menstruation, the endometrium undergoes significant changes that affect the quality of the blood flow.
   月经期间，子宫内膜发生显著变化，影响血液流动的质量。
3. 3. Endometrial cancer is a type of cancer that affects the endometrium, which is the lining of the uterus.
   子宫内膜癌是一种影响子宫内膜的癌症，这是子宫的内层。