[, ] () the relationship between the cost of doing sth and the profit or advantages that result from it 成本效益（做某事的成本和从中所得到的赢利或利益之间的关系）◆analyzing the cost benefits of different types of industry 分析不同类型产业的成本效益◆a cost-benefit approach to decision-making 用成本效益方法作决策