Improvement
01
改进, 进步
the action or process of making something better
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。
Her grades showed remarkable improvement after she started tutoring sessions.
她开始辅导课后，成绩显示出显著的提高。
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
