雅思写作常用词汇：成本高效益

发布时间：2016-02-29 编辑：查字典英语网小编

　　cost-effectiveness

　　-eg: The cost-effectiveness of treating a condition in the early stage, rather than delaying until more expensive and prolonged treatment is necessary.;

　　budget

　　-eg: She tried to keep her monthly budget below $400.

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