单词 cost benefit 释义 cost benefit (economics 经) the relation of the cost of sth to the benefit it gives 成本效益 [attrib 作定语] cost-benefit analysis 成本效益分析. 英汉双解词典包含38652条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有...