词汇	拿瓜
释义	拿瓜 ná guā擺架子，裝腔作勢。
随便看	principal translation principal transversal principal traverse principal tree principal trial principal triangle principal triangulation point principal trihedral principal trunk principal type principal type scheme principal ultrafilter principal underwriter principal uniformization principal unit assembling Principal Unit Security Officer principal use principal user processing principal valence principal valency principalvalue principal value principal value of an estate principal value of argument principal value of complex function