N字开头的单词或词组
noumenonnitritenutritionistnatalityneighborlynoise pollutionno shootnavy bluenitric oxidenomogramname list nameNBFnematodenext bitnot so badN-factornaturalistnephronnanogramnever look backnimblynotes payableneckingNBTnewsstandNorfolkno thoroughfarenygmanymphomanianabeno sweatnameplatenumber linenormal distributionNegritoNorth DakotaNAAnormalizingno jokenarisnevusnominative