a device with two or more long, flat blades that turn quickly and cause a ship or an aircraft to move forward 螺旋桨(飞机或轮船的推进器) Extra ExamplesTopics Transport by waterc2, Transport by airc2The propeller suddenly stopped turning. 螺旋桨突然停止转动。 The boat is fitted with a two-blade propeller. 这艘船装有双叶片螺旋桨。 The front engine drives the propellers. 前置发动机驱动螺旋桨。