n.螺旋桨,推进器,=propellor
With a low-pitched rumbling noise, the propeller began to rotate.
伴随着隆隆的低沉噪声,螺旋桨开始旋转起来。
The freighter fouled its propeller in fishing nets.
货船的螺旋桨被渔网缠住了。
The engine turned a propeller.
发动机使螺旋桨旋转起来。