four-speed

短语

词形变化

four-speeds 复数 four-speeds

别名

four speed

释义与例句

n.
  1. 1.

    Having four forward speeds.

    定语 不可数 可数

    My car has a four-speed transmission. It is not as efficient as my daughter's five-speed.

  2. 2.

    A transmission that has four forward speeds (it might or might not be a manual transmission); (metonymic) a vehicle with such a transmission.

    可数 不可数

    four-speed manual

    four-speed automatic

  3. 3.

    A transmission that has four forward speeds (it might or might not be a manual transmission); (metonymic) a vehicle with such a transmission.

    A manual transmission with four forward speeds; (metonymic) a vehicle with such a transmission.

    可数 历史 非正式 不可数

    A: Was your dad's Mustang a four-speed? B: No, it was an automatic.

词源

The sense specific to a manual transmission came from an era when manual transmissions in passenger cars were usually four-speeds but automatics were usually three-speeds or two-speeds.

来源：wiktionary