Improvement
01
改进, 进步
the action or process of making something better
语法信息
有生性状态
抽象
形态构成
复合词
可数
复数形式
improvements
例子
The city has seen significant improvement in air quality over the past year.
过去一年，该城市的空气质量有了显著改善。
02
改进, 进步
a change for the better; progress in development
03
改进, 进步
a condition superior to an earlier condition
