primary school - for the teaching of young children, especially those between five and eleven years old, robot - a machine controlled by a computer that is used to do jobs automatically, difficult - not easy or simple; hard to do or to understand, university - a place of higher education usually for people who have finished twelve years of schooling, popular with - liked, enjoyed, or supported by many people, speak - to say words, to use the voice, or to have a conversation with someone, students - someone who is learning at a school, language - a system of communication consisting of sounds, words, and grammar, replace - to put something or somebody in the place of something or someone else, high-tech - using the most advanced and developed machines and methods, floor - the flat surface of a room on which you walk,

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