deteriorate /diˈtiəriəreit/ vt. & vi. (使)变化，(使)变坏：A hot damp climate deteriorates leather. 湿热的天气使皮革变坏。The weather deteriorated. 天气恶化。

 

deterioration / diˌtiəriəˈreiʃən/ n. [c] & [u] 恶化，变坏，退化，堕落：a rapid deterioration in his condition他身体状况的迅速恶化Mental and physical deterioration both occur naturally with age.随着年龄的增长，心智和体力自然衰退。