To invent an airplane is nothing. To build one is something. But to fly is everything.
发明一架飞机没什么了不起。建造一个是很重要的。但飞就是一切。
-- Otto Lilienthal 奥托·李林塔尔
To invent an airplane is nothing. To build one is something. But to fly is everything.
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To invent an airplane is nothing. To build one is something. But to fly is everything.
发明一架飞机没什么了不起。建造一个是很重要的。但飞就是一切。
-- Otto Lilienthal 奥托·李林塔尔
