- 問題詳情:ACanadianuniversitystudenthasdonewhatLeonardodaVinci(達·*奇)hadonlydreamtof:Pilotingahumanpowered“wing-flapping”plane!Calledanornithopter,andtheinspirationformodern-dayhelicopters,themachinewasfirstsketchedbyLeonardodaVinciwaybackin1485andne...
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