natural childbirth

method of childbirth in which the mother is given no anaesthetic and does breathing and relaxation exercises 自然分娩法.

national service, National Trust, nationalism, nationalist, nationalistic, nationality, nationalization, nationalisation, nationalize, nationalise, nationally, nationwide, native, native speaker, native-speaking, nativity, nativity play, NATO (also Nato), natter, nattily, natty, natural, natural gas, natural history, natural law, natural philosophy, natural selection, naturalgas, naturalism, naturalist, naturalistic, naturalization, naturalisation, naturalize, naturalise, naturally, naturalness, nature, nature study, nature trail, naturism, naturist, naturopath, naturopathic,