名詞 deterioration:

1. a symptom of reduced quality or strength
   同義詞：impairment
2. process of changing to an inferior state
   同義詞：decline in quality, declension, worsening

1. Gradual deterioration of specific tissues, cells, or organs with corresponding impairment or loss of function, caused by injury, disease, or aging.
   變性特定的組織、細胞或器官隨著受傷、疾病或年老而導致的相應的功能的削弱或喪失，而形成的逐漸的變質
2. A process, condition, or period of deterioration or decline, as in morals or art; decay.
   墮落在道德或藝術方面變壞，或衰落的過程、條件、或期間; 衰敗
3. Deterioration of intellectual faculties, such as memory, concentration, and judgment, resulting from an organic disease or a disorder of the brain. It is often accompanied by emotional disturbance and personality changes.
   癡呆智力能力，例如記憶力、精神集中的能力、判斷力等的惡化，常因某器官病疾或頭腦紊亂，引起經常伴隨著情感波動和性情的變化
4. Inevitable and steady deterioration of a system or society.
   惡化，敗壞系統(tǒng)或社會不可避免的無法逆轉的惡化或敗壞