umbilical cord insertion

例句：

1. 1. Thebaby's umbilical cord was inserted into the mother's womb.
   婴儿的脐带被插入母亲的子宫。
2. 2. During labor, the doctor inserted a needle through the umbilical cord to monitor fetal heart rate.
   在分娩过程中，医生通过脐带插入一根针来监测胎儿心率。
3. 3. After birth, the umbilical cord is removed and the baby is placed in a clean incubator.
   出生后，脐带被移除，婴儿被放置在一个干净的保温箱中。