During the whole of gestation period, the nutrition of fetus is ingested by the blood circulation between maternal and fetus.
在整个妊娠期间，胎儿的营养摄入主要是通过母子血液循环获得的。
When placental adherence happens, blood circulation of villus in the placenta could be retard, and then the developing of fetus were affected.
当粘连发生，胎盘内血液循环受阻将直接影响胎儿发育。
When placental adherence happens, blood circulation of villus in the placenta could be retard, and then the developing of fetus were affected.
当粘连发生，胎盘内血液循环受阻将直接影响胎儿发育。
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