Google Translate plugin
A plugin that adds the Google "translate" button to every ticket description and ticket comment, and that would translate it to the current UI language:
If you have any issues, create a new ticket.
Download the zipped source from here.
You must enable it in Trac's UI or by editing your trac.ini file:
[components] translate.* = enabled
Also, you have to get a google API key and add it to your trac.ini file:
[translate] google_api_key = <GOOGLE API KEY>
Click on the "Translate" button and your comment or ticket description will get translated to the chosen UI language.