Currently you can't publish a translated page with CX if you haven't changed the automatically translated text enough to pass a certain threshold. This is to protect against poor automatic translations. However Google Translate has improved a lot lately and what was once a helpful feature has turned into a problematic one now because we struggle a lot to hit that threshold. Some users have started purposely butchering some aspects of the text just so they hit the limit and then solve what they ruined after being allowed to publish the edit. In this situation we require for the threshold to increase to whatever is now (I'm assuming it is 85%) to 90%, hoping this will be a more normal limit for the updated translations Google Translate is able to provide nowadays.
This is the link for the discussion and voting.