基本解釋[經(jīng)濟(jì)學(xué)]不必要開(kāi)支詞組短語(yǔ)短語(yǔ)nugatory y expenditure 不必要開(kāi)支nugatory expenditure更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)不必要開(kāi)支