noun 下载 🔗分享 胎盘,胞衣。 The placenta and other material expelled via the birth canal following childbirth or parturition in mammals. Examples : "The midwife checked to ensure the entire afterbirth had been expelled after the baby was born. " 助产士在婴儿出生后检查,确保整个胎盘都已排出。 physiology medicine anatomy biology organism body sex process animal 与AI对话词汇游戏阅读练习