costsn.费用；讼费名词cost的复数形式.costn.费用；成本；代价；[律]诉讼费用v.花费；使付出；使做不愉快的事；估算成本cost mangement成本管理cost splitting费用分担cost of losses网损费用cost functions成本函数cost apportion成本分摊cost revealing成本显示cost-control成本控制cost breakdown成本分解cost of search信息搜寻成本cost- income成本收益