switchback

n. Z形爬坡路线

发音

UK /ˈswɪt͡ʃbæk/
其它
US /ˈswɪt͡ʃˌbæk/

词形变化

switchbacks 复数 switchbacks switchbacked switchbacking switchbacks 三单 switchbacking 现在分词 switchbacked 过去式 switchbacked 过去分词

释义与例句

n.
  1. 1.

    A railway track on a steep slope in a zigzag formation, in which a train travels in a reverse direction at each switch.

    定语 比喻 交通
  2. 2.

    A railway track on which there are steep ascents and descents, a train moving partially or fully by the force of gravity using the momentum generated when descending to travel up an ascending part of the track; especially (British, dated), such a track built for fun rides at an amusement park; a type of rollercoaster.

    定语 比喻 交通
  3. 3.

    A flight path consisting of a series of steep ascents and descents, generally flown as a stunt.

    定语 比喻 航空 商务 工程 引申义
  4. 4.

    A path or road having a series of steep ascents and descents.

    定语 比喻 引申义
  5. 5.

    A sharp bend in a path or road which causes a traveller to almost reverse their direction of travel, especially one of a series of such bends on an incline; a hairpin bend; also a path or road having such a series of bends.

    加拿大 美国 定语 比喻 交通 引申义
v.
  1. 1.

    To take a zigzag course or path.

    定语 比喻 不及物

词源

The noun is derived from switch (“to turn (a train) from one railway track to another using a switch”, verb) + back (“so as to reverse direction and return”, adverb). The verb is derived from the noun.

来源：wiktionary