基本解释额先露词组短语短语delivery brow presentation 额先露分娩face brow presentation fetus 胎儿面或额先露Obstructed labor due to brow presentation 额先露引起的梗阻性分娩Maternal care for face , brow, and chin presentation 为面先露、额先露和颏先露给予的孕产妇医疗brow presentation更多词组专业释义医药科学额先露