double back片語動詞KK [ˋdʌbəl bæk] /ˈdʌbəl bæk/發音片語動詞1折返、返回原路、往回走The hikers doubled back when the trail suddenly disappeared.小徑突然消失,健行的人只好循原路折返。2繞回、迂迴折回The suspect doubled back through the alley to lose the police.嫌犯從巷子繞回去,想甩掉警察。3對折、折起可拆開She doubled the thick blanket back to fit it in the box.她把厚毯子對折起來,好塞進箱子裡。