
The way Drupal manages translation have been advancing over several versions. Drupal requires the combination of core & contributed modules to make a site multi-lingual. We will be using Drupal 7's content translation method. One challenge you will be facing is to translate the content into the languages needed. There are lots of tools available for this online like google's translate. Using this method, for example, Arabic node will hold all Arabic values and English node will hold all the English values.