They afterwards came to a little house, made of branches and the bark of trees; a large wild apple-tree bent over it.

他们找到一座用树皮和树枝盖的房子。房子上有一棵结满了苹果的大树。

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Archetti's new study began when he noticed that red leaves are more common in wild apple trees than in ones grown for fruit.

Archetti的研究是在他注意到野生苹果树上红色的叶子比种植的要普遍多时开始的。

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Archetti's new study began when he noticed that red leaves are more common in wild apple trees than in ones grown for fruit.

Archetti的研究是在他注意到野生苹果树上红色的叶子比种植的要普遍多时开始的。

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