正兒八經(jīng):正經(jīng)的,正經(jīng)八百:是正經(jīng)的,也有名副其實的含義,正正經(jīng)經(jīng):解釋為嚴肅而認真,一本正經(jīng):原指一部合乎道德規(guī)范的經(jīng)典,鄭重其事,