英语语法分析

Hemorrhage into the decidua basalis formed retroplacental hematoma.

底蜕膜在出血形成胎盘后血肿。

Hemorrhage into the decidua basalis, formed retroplacental hematoma, lead to the separation of the placenta.

出血进入蜕膜基底，形成胎盘后血肿，导致胎盘分离。