improvement
n. 改善; 改进之处; 改善的事物
If there is an improvement in something, it becomes better. If you make improvements to something, you make it better.
...the dramatic improvements in organ transplantation in recent years...
近几年器官移植方面取得的巨大进步
There is considerable room for improvement in state facilities for treating the mentally handicapped.
国家现有的用于智障病人治疗的设施还有相当大的改进余地。
If you say that something is an improvement on a previous thing or situation, you mean that it is better than that thing.
The new Prime Minister is an improvement on his predecessor...
新上任的总理比他的前任要强。
The system we introduced in 1980 has been a great improvement.
我们 1980 年引进的系统有了很大改进。
1. the act of improving something;
2. a change for the better; progress in development
3. a condition superior to an earlier condition;
There's been a noticeable improvement in his handwriting.
他的书法有了明显的进步.
An improvement in our meal is hoped for.
大家希望改善一下伙食.
The relations between the two countries have shown some improvement.
两国关系已有所改善.
The composition is all right, but there is room for improvement.
这篇作文还不错, 不过还可以改进.
To learn a language we must follow the principle of gradual improvement.
学习语言必须遵循循序渐进的原则.