doubled back的用法和樣例：
例句
- He doubled back by another road and surprised us.
他從另一條路折了回來，嚇了我們一跳。 - He ran down towards the main road, stopped short when he saw the police car and doubled back up the alley.
他朝大路跑去，見到警車時立即停了下來，然後折身轉回衚衕里去了。 - He started running towards the street but suddenly doubled back to his room.
他開始往街上跑，但突然又折回自己的房間。 - The fugitive doubled back to confound the pursuers.
逃亡者用曲折迂迴的辦法來迷惑追蹤者
