The tree is leafless [defoliate].

这棵树秃了。

《新英汉大辞典》

So were there 7 ones in leave color to defoliate degree.

叶色与落叶度有7个达极显著正相关程度；

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When the plants defoliate in the fall, they get back to normal.

当植株剪叶在秋天，他们回到了正常。

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When the plants defoliate in the fall, they get back to normal.

当植株剪叶在秋天，他们回到了正常。

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