freewheel

名词 freewheel:

1. a clutch (as on the rear wheel of a bicycle) that allows wheels to turn freely (as in coasting)

动词 freewheel:

1. live unhurriedly, irresponsibly, or freely
   同义词：drift
2. coast in a vehicle using the freewheel

1. An aircraft powered by a conventional propeller and supported in flight by a freewheeling, horizontal rotor that provides lift.
   旋翼机在飞行中以常规的螺旋桨来驱动并靠惯性滑行支持的，提供升力的水平旋转仪

free.wheel

v.intr.（不及物动词）
free.wheeled,free.wheel.ing,free.wheels
To continue turning or spinning after disengagement from the drive mechanism.
靠惯性滑行：脱离了传动机械后继续转动或旋转
To live or move freely and sometimes aimlessly or irresponsibly.
随心所欲地生活或行动：自由地，有时无目标不负责任地生活或行动
To operate independently or free of restraints.
独立或不受约束地操作