“改进之处”可以翻译为“areas for improvement” 或者 “points of improvement” 。例如：
We need to identify the areas for improvement in our current project. （我们需要找出当前项目中需要改进的地方。）
The report highlights several points of improvement in our customer service. （报告指出了我们客户服务中需要改进的几个方面。）