private static void Add_itm_many(Ordered_hash translated, int... langs) {
   int langs_len = langs.length;
   for (int i = 0; i < langs_len; i++) {
     Xol_lang_stub itm = Xol_lang_stub_.Get_by_id(langs[i]);
     translated.Add_if_dupe_use_nth(itm.Key(), itm);
   }
 }