You actually can, but before you put it up as an article on eZine you need to change the content as AdeleCosgroveBray said. It is called duplicate content and you will not be accepted into eZine Articles.
What you can do is go to an article spinner site and paste your text there. The site will spin or change your content thus making it unique content.
At that point you will want to read through it, edit it to make sure it makes sense. Then you can submit it to eZine Articles as brand new content and won't get flagged.