nuclear family

(sociology 社) the family considered as mother, father and children only, and not including any less close relations 核心家庭, 小家庭（仅由父母和子女组成, 不包括关系较远的亲属）.

now, now and then, now that, nowadays, nowhere, noxious, noxiously, noxiousness, nozzle, nr, NSB, NSPCC, NT, nth, nuance, nub, nubile, nuclear, nuclear disarmament, nuclear energy (also nuclear power), nuclear war, nuclear winter, nuclear-free, nucleate, nucleic acid, nucleolus, nucleus, nude, nudge, nudism, nudist, nudist camp (also nudist colony), nudity, nugatory, nugget, nuisance, null, nullification, nullify, nullity,