front vane

例句：

1. 1.The front vane of the airplane is where the propeller rotates.
   飞机的前翼是螺旋桨旋转的地方。
2. 2. The team's performance was significantly improved after the new coach took over.
   新教练上任后，团队的表现有了很大的提高。
3. 3. The engineer carefully removed the front vane from the engine to inspect it.
   工程师小心翼翼地从引擎上拆下前翼进行检查。