return to a previous good state, especially after illness or damage
文法句型
deterioration + in + noun
deterioration + of + noun
用法筆記
Common in formal or written contexts such as medical reports, economic analysis, and environmental studies. In everyday conversation, 'getting worse' is usually preferred.
常見錯誤
The road shows deterioration after winter.
The road shows signs of deterioration after winter.
'deterioration' alone sounds unnatural as a countable noun; use 'signs of deterioration' or 'a deterioration in' for measured contexts.