这才是 Lambert 真正想说的部分，也是整件事里最被忽视的地方。
Verify the output.
。爱思助手下载最新版本对此有专业解读
To bring a robot to life, motion-activating components, or actuators, are essential. Generally speaking, actuators can either go in and out, or spin around in a circle, and there are many different ways of doing this.
Additional reporting by Emma Calder