短语词组短语foetal sac 胎囊Foetal Scarring 不留痕迹Foetal mesoderm 胎儿中层;胎体中胚层foetal hemoglobin 胎儿血红蛋白;详细翻译foetal immunity 胎儿免疫foetal ankylosis 胎关节强硬foetal position 胎儿姿势 返回 foetal