剑桥词典If an activity is cost-effective, it is good value for the amount of money paid . 有成本效益的；物有所值的；合算的，划算的 It wouldn't be cost-effective to buy an expensive new computer when all you want to do is store your photos . 只为保存照片而买一台昂贵的新电脑并不划算。 返回 cost-effective