low implantation of placenta

例句：

1. 1.The low implantation of placenta is a major cause of miscarriage.
   胎盘植入低是流产的主要原因。
2. 2. The doctors found that the low implantation of placenta was related to her pregnancy complications.
   医生发现，胎盘植入低与她的妊娠并发症有关。
3. 3. The low implantation of placenta could lead to fetal growth restriction and premature birth.
   胎盘植入低可能导致胎儿生长受限和早产。