英汉词典

1. 改进(之处);改善(之处)
    If there is an improvement in something, it becomes better. If you make improvements to something, you make it better.

improvement是什么意思

    e.g. ...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
    e.g. 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。

2. 更优秀之物;改善的事物
    If you say that something is an improvement on a previous thing or situation, you mean that it is better than that thing.

improvement

    e.g. The new Prime Minister is an improvement on his predecessor...
           新上任的总理比他的前任要强。
    e.g. 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。