movable propeller blade

例句：

1. 1.The car has a movable roof for easy access.
   这辆车有一个可移动的顶篷，方便进出。
2. 2.The robot is movable and can be programmed to perform various tasks.
   这个机器人是可移动的，可以被编程执行各种任务。
3. 3. The furniture was made of movable parts that could be easily replaced.
   家具由可移动部件制成，可以很容易地更换。