名词
中文翻译：改进
同义词：
['enhancement', 'enhancement', 'amelioration']
例句：
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1. Thecompany's product quality has seen significant improvement since the implementation of new technology.
自从采用了新技术，公司的产品质量有了显著的提高。
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2.The teacher noticed that the students' understanding of the material had improved significantly after the revision session.
老师注意到，在复习班之后，学生们对材料的理解有了很大的提高。
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3. The research team has made considerable progress in their study on renewable energy sources, whichcould lead to significant improvements in energy efficiency.
研究团队在可再生能源源的研究上取得了很大的进展，这可能会导致能源效率的显著提高。