In addition, over time, regular exercise will make your blood vessels become more flexible allowing them to deliver more oxygen rich blood more efficiently.
另外，久而久之，定期的运动将使你的血管更有效率、更灵活地更传送更多富氧的血液。
Two arteries and one vein connect the fetus to the placenta re-circulating oxygen-rich blood and nutrients and keeping your blood separate from your baby's.
两个动脉和一个静脉把胎儿与胎盘联结在一起，传递富含氧气和营养的血液，并把你的血液与婴儿自己的血液分离开。
Two arteries and one vein connect the fetus to the placenta, re-circulating oxygen-rich blood and nutrients and keeping your blood separate from your baby’s.
两个动脉和一个静脉把胎儿与胎盘联结在一起，传递富含氧气和营养的血液，并把你的血液与婴儿自己的血液分离开。
应用推荐