基本解釋[經(jīng)濟學]外部傚益理論[法學]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；external benefit theory更多例句專業(yè)釋義經(jīng)濟學外部傚益理論法學外部傚益理論