deterioration [dɪˌtɪrɪəˈreʃən]

例句:

• The recent deterioration has been caused by an apparently endless recession.
  看似永无止境的经济衰退导致了最近的恶化。
  
• The subhuman conditions of work soon caused physical deterioration.
  非人的工作环境不久就导致了身体状况的恶化。
  
• 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.
  
• It depends exactly what you mean by deterioration.
  来自THETIMES
• The result may well be the unrecoverable deterioration of Earth.
  来自SA
• The causes for the recent deterioration in relations are complex.
  来自WSJ