benefit tax受益税benefitn.利益；津贴；义演；保险金；借助vt.有益于；得益benefit according to contract依契约受益benefit principle of taxation赋税受益原理benefits in incremental lands增量利益benefit of the reservoir area库区利益benefit of reservoir breeding水库养殖效益benefit of mothers and babies母婴利益benefit of running university办学效益Benefit arrangement mechanism利益分配机制benefit -oriented mechanism利益导向机制benefit on financial leverage财务杠杆利益