ameliorate/əˈmi:lɪəreɪt; ə`milɪəˌret/ v[I, Tn](fml 文) (cause sth to) become better （使某事物）变得更好, 改善, 改良 ameliorate conditions, circumstances, living standards, etc 改进情况, 改善环境, 提高生活水平.
牛津英汉双解词典