n.胎盘；胎座
Earlier studies linked the placenta to the disease. 早期的研究认为，该病与胎盘有关。
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。
Starch grains present in the embryo sac and placenta are utilized by the embryo. 存在于胚囊和胎座中的淀粉粒为胚胎所利用。
胎盘形成前的
胎盘后的
胎盘下的
子宫胎盘的
[解、动]胎盘形成
