最近,美国科学家研究出一种直径只有30微米的机器人。这种机器人可以进入人的血管,对血管里的病毒进行“大扫荡”。 当然,有的病毒非常狡猾,当它们见机器人来势凶猛时,便装出一副可怜相,赶紧“弃械投降”,或者干脆一动不动地装死。心地善良的机器人见敌人已无还手之力,便大度地从它们身边走过。当机器人已经背过身去时,病毒突然从后面对机器人进行突然袭击。机器人当然不会畏惧,它们英勇地和病毒搏斗, Recently, American scientists have developed a robot that has a diameter of only 30 microns. This robot can enter the human blood vessels, the blood vessels of the virus “big mopping up.” Of course, some viruses are very cunning. When they see the robots ferocious, they put on a pathetic phase and quickly “surrender their surrender” or simply die dead. Good-hearted robot see the enemy has no fight back, then they pass by generously from their side. When the robot has been back, the virus suddenly from the back of the robot attack. Of course, the robot will not be afraid, they bravely fight against the virus,