求一些关于经济的英语专业术语答:6、Profit 利润income 收入,收益earnings 利润,收益gross income, gross earnings 总收入,总收益gross profit, gross benefit 毛利,总利润,利益毛额net income 纯收益,净收入,收益净额average income 平均收入national income 国民收入profitability, profit earning capacity 利润率,赢利率yield 产量收益,收益率increase in...