名词
中文翻译：改良
同义词：
['improvement', 'enhancement', 'improvement']
例句：
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1. Thegovernment has implemented several ameliorationmeasures to combat the pandemic.
政府已经实施了若干改良措施来应对疫情。
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2. Thenew policy aims to amelioratethe economic situation by increasing investment in infrastructure.
新政策旨在通过增加基础设施投资来改善经济状况。
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3. The research team conducted ameticulous amelioration ofthe existing system to improve efficiency.
研究团队对现有系统进行了仔细的改良以提高效率。