飞机和鸟同样都在空中飞行,飞机的机翼一动也不动,鸟的翅膀却经常上下拍动。为什么鸟不知道疲倦?为什么它不让自己的翅膀也像飞机那样固定在一个位置上? 看起来,似乎飞机“聪明”而鸟“笨”。但事实恰恰相反。就飞行本领来说,鸟比飞机“巧”得多。现代的飞机,必须同时具 The plane and the bird are all flying in the air. The wing of the plane does not move. The bird’s wings often flutter up and down. Why does the bird not know tiredness? Why does it not keep its wings fixed in a position like an airplane? It seems that the aircraft is “smart” and the bird is “stupid.” But the opposite is true. In terms of flight skills, birds are “smarter” than airplanes. Modern aircraft must have both