名词
中文翻译：落叶
同义词：
['deciduous leaf', 'deciduous fall', 'autumnal leaf']
例句：
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1. The leavesare changing colors as the season changes.
随着季节的变化，树叶的颜色也在变化。
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2.Trees shed their leaves in the fall to prepare for winter.
树木在秋天脱落叶子以准备过冬。
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3. The falling of leaves is a natural part of the autumn landscape.
落叶是秋季景观的自然部分。