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劣化,恶化
1. deterioration (in quality, performance, etc.), degradation, worsening
noun or participle which takes the aux. verb suru
noun (common) (futsuumeishi)
intransitive verb
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老化
2. (visible) aging, becoming unattractive (due to aging)
intransitive verb
noun or participle which takes the aux. verb suru
noun (common) (futsuumeishi)
colloquial