translation.en: An NYU researcher here took little cardboard robots with smiley faces on them, and a motor that just drove them forward and a flag sticking out the back with a desired destination.
translation.zh: 一位纽约大学的研究人员发明了小的纸板机器人 并在机器人上画有笑脸 用马达推动机器人前进 机器人的背面有面旗子 写有想要到达的目的地