Thee story that a young Isaac Newton crafted his theory of gravity while sitting under a tree that dropped an apple on his head, is a popular one.
人们普遍相信艾萨克罏·牛顿年轻时曾坐在一棵树下，被树上掉下来的苹果砸到了头，随后便有了万有引力理论。
Thee story that a young Isaac Newton crafted his theory of gravity while sitting under a tree that dropped an apple on his head, is a popular one.
人们普遍相信艾萨克罏·牛顿年轻时曾坐在一棵树下，被树上掉下来的苹果砸到了头，随后便有了万有引力理论。
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