四个主要的死因包括严重的大出血（大多数是产后出血）、感染（大多数是败血症）、妊娠高血压（通常是子痫）和难产。

The four major killers are: severe bleeding (mostly bleeding postpartum), infections (also mostly soon after delivery), hypertensive disorders in pregnancy (eclampsia) and obstructed labour.

youdao

四个主要的死因包括严重的大出血（大多数是产后出血）、感染（大多数是败血症）、妊娠高血压（通常是子痫）和难产。

The four major killers are: severe bleeding (mostly bleeding postpartum), infections (also mostly soon after delivery), hypertensive disorders in pregnancy (eclampsia) and obstructed labour.

youdao