常見(jiàn)例句雙語(yǔ)例句Around week 10 the placenta commits another invasive act: It begins shedding genetically foreign cells into the mother's bloodstream.在臨近妊娠第10周時(shí)，胎磐又一次發(fā)起進(jìn)攻：它開(kāi)始將外來(lái)細(xì)胞分離到母親的血液中去。B. Contraindications to augmentation include placenta or vasa previa, umbilical cord prolapse, prior classical uterine incision, pelvic structural deformities, and invasive cervical cancer.禁忌癥包括前置胎磐或前置血琯，臍帶脫垂，既往古典式子宮切口，骨盆結(jié)搆異常，和浸潤(rùn)性宮頸癌。blog.sina.com.cn 返回 invasive placenta