vt.<正,夸>(使)改善,改进,减轻(痛苦等),改良
vi.变得更好
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。
Steps have been taken to ameliorate the situation.
已经采取措施以改善局面。
Nothing can be done to ameliorate the situation.
做什么也无法使情况好转。