placenta respiration

例句：

1. 1. The placenta respiration is a process that occurs during pregnancy when the fetus receives oxygen andnutrients from the placenta.
   胎盘呼吸是一个过程，发生在怀孕期间，胎儿从胎盘中接收氧气和养分。
2. 2.During labor, the placenta respiration is crucial for the baby's survival.
   在分娩过程中，胎盘呼吸对婴儿的生存至关重要。
3. 3. Researchers are studying the role of placenta respiration in determining the health of the mother and child.
   研究人员正在研究胎盘呼吸在确定母亲和孩子健康方面的作用。