Where does the hamburger come from? The hamburger was not invented in the USA. It was invented in a German city called Hamburg. In 1924 the hamburger restaurants were opened. Where does the hot dog come from? A hot dog is not really a dog. In fact, you put a sausage（香肠）inside a bread roll(面包卷) and you will make a hot dog. Most people say the hot dog comes from Germany.

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