How to render translated node body in two languages?
I found a solution: call field_attach_view with the required language.

/**
 * Implements hook_preprocess_node().
 */
function MYMODULE_preprocess_node(&amp;$vars) {
  if ($GLOBALS['language']-&gt;language == 'ru') {
    $original_langcode = 'en';
    $content_original = field_attach_view('node', $vars['node'], $vars['view_mode'], $original_langcode);

    // need to check if languages match, it may be a language fallback
    if ($content_original['body']['#language'] == $original_langcode) {
      $vars['content']['body_original'] = $content_original['body']
    }
  }
}