placenta simplex

• 单胎盘

placenta simplex的用法和样例：

例句

1. Earlier studies linked the placenta to the disease.
   早期的研究认为，该病与胎盘有关。
2. Methamphetamine passes through the placenta and is secreted in the breast milk.
   甲基苯丙胺通过胎盘分泌在母乳中。