动词
中文翻译：改进
同义词：
['improve', 'refine', 'upgrade']
例句：
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1. The company has made significant improvements in its product quality.
该公司在产品质量上取得了显著的改进。
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2. The teacher suggested that we should refine our study methods.
老师建议我们应该改进我们的学习方法。
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3. The new software has significantly upgraded the user experience.
新软件极大地提升了用户体验。