单词	copens
释义	同copen
随便看	number one number one boy number one man number one oiler number opera number operation number, oscillation quantum number-- oscillation quantum number pad number performance number period number per unit energy interval number per unit energy interval number plate numberplate number plate lamp number-plate light number, pong number pool number portability number portability {=np} number portability; np number, preperred number-- principal quantum number pyramid