名词
中文翻译：改善的
同义词：
['beneficial', 'beneficial', 'advantageous']
例句：
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1. The new policy is designed to ameliorate the economic situation.
新政策旨在改善经济状况。
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2. The research has shown that exercise can be ameliorative for mental health.
研究表明，锻炼可以有益于心理健康。
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3. This medicine is beneficial for treating colds and flu.
这种药对治疗感冒和流感有益。