请英文好的朋友帮助修正一下以下段落写作的错误

题目

请英文好的朋友帮助修正一下以下段落写作的错误
Both sites contain separate sections introducing environmental protection,and there is a rich categories such as ‘Sustainable Profitability’,‘Environment’ and ‘Sustainability Scorecard’,etc.and mass of the article which topic is around environment,indicating that the two companies take issues of environmental protection very seriously.

答案

总的来说,写得还不错.但个别地方用词不当,标点符号用错.Each (不同的用each; 相同的用both) of the two sites contains separate sections introducing environmental protection,(后面的是两个点“加起来”有的还是...