You wear out iron shoes in hunting round when all the time it's easy to be found find sth by chance after travelling far and wide in search of it You can wear out iron shoes in fruitless searching and yet by a lucky chance you may find the lost thing without even looking for it find sth accidentally after tracking miles in vain for it
英語詞典收錄了最新的漢英詞典和英漢詞典，總共有200多萬個詞條，詞庫仍在不斷更新中。