[no obj.]become progressively worse 恶化,不断变坏 relations between the countries had deteriorated sharply. 国家间的关系急剧恶化。 [as adj. deteriorating]deteriorating economic conditions. 恶化的经济状况。
派生 deterioration noun deteriorative adjective 语源
late 16th cent. (used transitively in the sense 'make worse'): from late Latin deteriorat- 'worsened', from the verb deteriorare, from Latin deterior 'worse'