来帮忙看下这个句子中的两个which!

问题描述:

来帮忙看下这个句子中的两个which!
He has got great achievements,which is not only reflected in xxxxxxx,which makes him a great xxx in thecompany,but also reflected in xxxx,后略
这样用两个which可以么?该句用在比较正式的文章里
请原谅……

不行,第二个which改and