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英语解释:the first form of something new, made before it is produced in large quantities

first form or design of something
The prototype of the modern airplane is the aircraft first designed by the Wright Brothers. That is, the later planes of the modern times are the copies of the original aircraft the Wright Brothers designed and flew in. The prototype of a car, for example, is the original car a company designs before it is mass-produced and put on sale. The Neanderthal man is believed to be the prototype of the later human being.