1728, perhaps a back-formation from amelioration on pattern of French améliorer. The simpler form meliorate was used in Middle English. Related: Ameliorated; ameliorating.
实用例句
1. He expected me to do something to ameliorate his depression.
他希望我做点什么好让他不那么沮丧。
来自柯林斯例句
2. Nothing can be done to ameliorate the situation.
做什么也无法使情况好转。
来自柯林斯例句
3. Steps have been taken to ameliorate the situation.
已经采取措施以改善局面。
来自《权威词典》
4. In every human being there is a wish to ameliorate his own condition.
改善自己境况的愿望人皆有之.
来自《现代汉英综合大词典》
5. Everyone wishes to ameliorate his own condition .