obstetrics

n [sing v] (medical 医) branch of medicine and surgery concerned with childbirth 产科学: gynaecology and obstetrics 妇产科 * She specializes in obstetrics. 她是产科专家.

observation car, observation post, observatory, observe, observer, observing, obsess, obsessed, obsession, obsessional, obsessive, obsessively, obsolescence, obsolescent, obsolete, obssess, obstacle, obstacle race, obstetric, obstetrician, obstinacy, obstinate, obstinately, obstreperous, obstreperously, obstreperousness, obstruct, obstruction, obstructionism, obstructionist, obstructive, obstructively, obtain, obtainable, obtrude, obtrusion, obtrusive, obtrusive-ness, obtrusively, obtuse,