关于improvement的几个问题

可数的.
little improvement(s).写作带s,口语可以不带.
a little improvement.不能带s
例句：
He has some great improvements.
We will try to make a little improvement.
Little imrovements are better than no improvement.
We shall never forget the great many improvemenets he brought.

给你举个例子就知道了．
experience都知道是经历或是经验的意思．
1.当表示经验的时候不可数，只能用experience
2.当表示经历的时候可数，只能用experiences

improvement
improve 改善 + -ment名词后缀
n
增进，改善，改良
Much improvement has been made in the public order of the city.
这个城市的治安有了很大的改进。
There's been a great improvement in his history a...