根据所给中英文提示语，以Introduction to A Robot 为题写一篇60字以上的短文。 注意语句扩展， 意思连贯。 短文开头已经给出。

提示:

1.机器人可以分四个部分: sensing(感觉), movement(运转), energy(能量),

intelligence(智能).

2.简单介绍这四个部分的情况.

Introduction to A Robot

A robot is a system that contains sensors, control systems, manipulators, power supplies __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________