I don't want all these files cluttering up my desk.

我不想看到所有这些文档乱堆在我的桌子上。

But I don't need them cluttering up my life.

但我不需要他们，这简化了我的生活。

This avoids cluttering up the core content with auxiliary material.

这样可以避免把核心内容与辅助资料混在一起。

This was done to avoid cluttering the prototype with too much detail.

这是为了避免说不清楚具有太多的细节的原型。

But I don't need them cluttering up my life. Maybe that's how he feels about me.

可我只是不需要它们来搅乱我的生活，也许这也是他对我的感觉吧。