.英文句子,帮忙看下此句有无语法错误.

题目

.英文句子,帮忙看下此句有无语法错误.
如题：
It has a significance of milestone for us and Daxin to cooperation of the A+H listing business,the achievement of diversification,the expansion of our businesses in the mainland market. 
或者有没有更好的表达方式?

答案

significance不可数,不能用a 应该to cooperate或in the cooperation of 改写后：It is a significant milestone for us and Daxin in the cooperation of the A+H listing business,the achievement of diversificat...