screwpropeller

例句：

1. 1. The boat was propelled by a screwpropeller.
   这艘船是由螺旋桨推进的。
2. 2. The aircraft used a screwpropeller to reach its destination.
   飞机使用螺旋桨到达目的地。
3. 3.The ship's screwpropeller was designed to be quiet and efficient.
   船的螺旋桨设计得既安静又高效。