机器人的构成部分: computer,sensor,actuator 机器人会做的事: weld,inspect, watch over,make map,rescue,explore, track, vacuum, deliver 机器人的种类:human-like robot,robotic dog,life-size robot,robotic snake, factory robot, vacuum bot, robot alarm clock, fetchbot, nanobot, android, spacecraft, robonaut, rover robot, roboticcar, robo-car be designed for... 为......所设计 set out to do sth.着手做某事开始做某事 have trouble (in) doing sth.做某事有困难 现在完成进行时的用法，例如: Researchers at Honda have beenbuilding robots that look and act like humans for more than 15years. what引导的主语从句，例如: What you see on the screen is theresult of movie magic. “do+动词原形”表示强调，例如: Some robots really do look likepeople, but most don't. “either”在否定句中的用法，例如: Nobody likes to do housework, either.