Christian then combined that new joystick with the joystick that he uses with his lip to control his wheelchair, and with the two joysticks combined, Christian finally had control over all the manual controls of a drone.

然后克里斯蒂安把这个新的手柄和他用嘴唇控制轮椅的手柄结合在一起，有了这合二为一的手柄，克里斯蒂安终于可以完全掌控无人机的所有手动控制了。