A propeller is a device with blades attached to a boat or aircraft. The engine makes the propeller spin around and causes the boat or aircraft to move. 螺旋桨
noun [专属名词](飞机或轮船的)螺旋桨,推进器
With a low-pitched rumbling noise, the propeller began to rotate. 随着低沉的隆隆声,螺旋桨开始旋转起来。
-pel- Pel,puls= drive, push, 表示“驱动,推”"propeller n. 推进器(propel 推进+l+er)