释义
n. 螺旋桨,推进器
例句
1. Can you free the propeller from the weeds?
你能把螺旋桨上的草除掉吗?
2. The distance that a propeller would travel in an ideal medium during one complete revolution, measured parallel to the shaft of the propeller.
推进器转一圈的距离飞机螺旋桨旋转一次的前移距离，以其与螺旋桨相平行的距离衡量