雅思写作高频词汇介绍之改良

　betterment[改良/改进]/improvement

　　-eg: The betterment of the medical service is what the general public is looking for.;

　　compulsory education[义务教育]

　　-eg: 9-year compulsory education;

　　levy[征税/强加于]/impose

　　-eg: levy income tax/tax on real-estate.