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
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