I hope everyone would study hard to make a better progress.这个句子有语法错误么?

题目

I hope everyone would study hard to make a better progress.这个句子有语法错误么?
progress不是不可数名词么?前面加a better是对的吗?
The first and captial work is study.怎么翻？captial怎么读？

答案

抽象名词有时候也可以转化成可数名词来使用,如He is a success.
captial 是重要的首要的意思. 就是首都的发音