名词
中文翻译：Unknown
同义词：
['decline', 'deterioration', 'decomposition', 'decay']
例句：
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1. The process of degeneration is a natural one that occurs over time.
退化是一个自然的过程，随着时间的推移而发生。
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2.The old building has undergone significant degeneration due to neglect.
由于忽视，这座老建筑已经发生了显著的退化。
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3. The scientist observed the degeneration of the plant's leaves as it aged.
科学家观察到植物随着年龄的增长叶子发生了退化。