adj.改良的；改进的
动词improve的过去式和过去分词.
Improved wheats will be introduced on a wide scale this year. 今年将大范围的推广小麦的改良品种。
The improved lid of this jar makes for easier opening . 这个改良过的大口瓶盖子易于开启。
Improved service have result in another star in the hotel's grade. 服务的改进使饭店又晋升了一个星级。
They also heard reports on improved methods of diagnosing cancer. 他们还听了关于改进癌症诊断方法的报告。
