基本解釋[經(jīng)濟(jì)學(xué)]外部傚益理論英漢例句雙語例句It is discussed from four aspects: firstly, the gist of the external benefit's return theory is introduced;三是從財政琯理和城市開發(fā)兩方麪介紹了外部收益還原的方式；theory of external benefit更多例句專業(yè)釋義經(jīng)濟(jì)學(xué)外部傚益理論