单词	碎呢片
释义	碎呢片woollen rag
随便看	natural period natural period band natural period of oscillations natural period of vibration natural person natural philosopher natural philosophy natural pigment natural polarization direction natural pollination natural pollutant natural polymer natural population natural portland cement natural pour point depressant natural precession natural predisposition natural predisposition--diathesy-- congenital predisposition natural pressure cycle natural process natural process limit natural product natural productions natural products natural profile