freewheeling

[fri'wi:liŋ]

adj.无约束的
n.空程

例句与用法：

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

词形变化：

动词过去式: freewheeled | 动词过去分词: freewheeled | 动词现在分词: freewheeling | 动词第三人称单数: freewheels |

【口】无禁忌, 无约束的