The plot depicts the potential fear and dissatisfaction of humans toward robots. And that is how robota (the Czech term for "contract laborer") became the appellation for … well, for robots.
劇情道出人類對機器人潛藏的恐懼與不滿，而源自捷克文的 robota（契約工人）一詞，也就成了機器人的代號。