nucleolus

n. 核,细胞核,核仁

noxiously, noxiousness, nozzle, nr, NSB, NSPCC, NT, nth, nuance, nub, nubile, nuclear, nuclear disarmament, nuclear energy (also nuclear power), nuclear family, nuclear war, nuclear winter, nuclear-free, nucleate, nucleic acid, nucleus, nude, nudge, nudism, nudist, nudist camp (also nudist colony), nudity, nugatory, nugget, nuisance, null, nullification, nullify, nullity, numb, number, number one, numberless, numbly, numbness,