Google Translate plugin
A plugin that adds "translate" button to every ticket description and ticket comment that would translate it to 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 trac.ini
[components] translate.* = enabled
Also, you have to get a google API key and add it to trac.ini
[translate] google_api_key = <GOOGLE API KEY>
Click on "translate" button and your comment or ticket description gets translated to UI language