multi-lingual ecommerce

Hello, we have to developp a multi-site and multi lingual e-commerce plateform..

we dont want to end up with severall products... is it possible to have, in wordpress a multi-lingual store with multiple language associated on one product ? and only one backend ?

Even best if we can have only ONE main backend for 2 urls ( one of the site is complete with 400 skus, the other one is really topic with 40 skus )