freewheel

n. 自由飞轮 vi. 随心所欲, 凭惯性滑行

发音

US

词形变化

freewheels 复数 freewheels freewheeled freewheeling freewheels 三单 freewheeling 现在分词 freewheeled 过去式 freewheeled 过去分词

别名

free wheel

释义与例句

n.
  1. 1.

    A device in a transmission that disengages the driveshaft from the driven shaft when the driven shaft rotates faster than the driveshaft.

  2. 2.

    The mode or state of operation thus produced: Synonym of neutral.

v.
  1. 1.

    To continue spinning after disengagement.

    工程
  2. 2.

    To ride a bicycle without pedalling, e.g. downhill.

  3. 3.

    To operate a motor vehicle which is coasting without power, e.g. downhill.

    汽车 交通
  4. 4.

    To operate free from constraints.

    比喻 引申义

词汇关系

名词

上位词 1

clutch
动词

同义词 1

drift

上位词 5

live survive exist coast subsist

近义相关 1

drift

词源

From free + wheel.

来源：wiktionary