That is one of the correct translations we have in the database. If your sentence was rejected there must have been an error. In addition to the screenshot as suggested by #mizinamo what you could do is follow the prescribed procedure of making a Report before you post here.
That will make it possible for us to see the full sentence...just a few words are not enough to understand where you have an error.
Here's how to report. Go to the bottom of the exercise page where you'll see REPORT Click on that:
Then choose what you want to REPORT: (You'll see these to choose from.)
-The audio does not sound correct.
-The dictionary hints on hover are wrong or missing.
-The Greek sentence is unnatural or has an error.
-The "Correct solution" is unnatural or has an error.
-My answer should be accepted. This is the one you should click on if your translation was not accepted.
After choosing the REPORT you want to make you should post on the comment page.