Item tempItem = Sitecore.Context.Database.GetItem(tempID);
 foreach (var itemLanguage in tempItem.Languages)
 {
   //Do Something

 }

Item tempItem = Sitecore.Context.Database.GetItem(tempID);
foreach (var itemLanguage in tempItem.Languages)
{
    var item = tempItem.Database.GetItem(tempItem.ID, itemLanguage);
    if (item.Versions.VersionCount > 0)
    {
        // do something. If there is no "ru" version, this will be 0
    }
}