Need some help with CMS designing

Hi guys !
I'll appreciate some help...
I'm buildind CMS system ,it should save the same content in different languages.
If the user adds some content in english I'll automatically duplicate this content to other languages .Then translator that enters the system will translate this content that he see in english to other language.
Here is the problem :
If I edit the content in WYSIWYG then I save into DB html code with all te styles .My translator will see the content as designed page .The translaor doesn't know HTML and when he will translate the text he will destroy the design that was there from the beggining.
Suppose he copy&pase what he see to WORD translates it and copy&pase it back to WYSIWYG ,again the same problem plus when you copy&paste from word to html editor it adding many nasty tags.

How I can avoid from the translator to destroy my page styling and to keep the right format ?

I need my translator to see only the text and to translate it ,I don't want him to distroy the page design.

I think this is a little a bit complicated I hope you will understand what I mean...

Personally, I'd go for a lightweight markup system, and store all the data in that, and convert before displaying it ( exactly what sites like wikipedia do ). There are many out there, have a google for markdown, textile, wiki etc.

--Simon