英语翻译综上所述,我认为A的作用还是值得肯定的

综上所述,我认为A的作用还是值得肯定的

As mentioned above , I think that the function of A is worthy to be affirmed.

As mentioned above, I feel that the role of A deserved to be positive

As mentioned above, I believe that the role played by A is worthwhile to be affirmed