You were all so full of energy and thirsty for knowledge. Knowledge will give us wings to fly.
你们都那么精力充沛、渴望知识。知识会给我们飞翔的翅膀。
Knowledge is a pair of wings, to help us to fly.
知识就是一双翅膀，帮助我们飞翔。
Wings making is more complicated than you can imagine. It needs a lot of knowledge of physics and mathematics.
制造翅膀比你们想象的要复杂的多，它需要很多物理学和数学知识。
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