新改善的英语可以用 "improved Engpsh" 来表示。

这个表达来源于英语中的形容词 "improve"，它的意思是 "变得更好" 或 "提高"。因此，"improved Engpsh" 就表示英语的水平有所提高，比原先更加优秀。

下面是一些使用 "improved Engpsh" 的例句，并附上中文翻译：

I've been studying Engpsh for a while now, and I think my speaking skills have improved a lot. (我已经学习英语一段时间了，我觉得我的口语技能已经提高了很多。)
Our Engpsh teacher has been working with us on our grammar and pronunciation, and we've noticed a significant improvement in our writing and speaking. (我们的英语老师一直在帮助我们纠正语法和发音，我们发现我们的写作和口语水平有了显著的提高。)
After taking an intensive Engpsh course, I feel pke my vocabulary has improved significantly. (在参加一个密集的英语课程之后，我感觉我的词汇量有了显著的提高。)