名词
中文翻译：改进
同义词：
['enhancement', 'enhancement', 'augmentation']
例句：
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1. Thecompany's product quality has significantly improved since the new management took over.
自从新管理层上任以来，公司的产品质量有了很大的提高。
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2.The teacher noticed that the students' understanding of the material had greatly improved after the teaching method was changed.
老师注意到，在教学方法改变后，学生们对材料的理解有了显著提高。
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3. The project team has made significant improvements in project management and delivery efficiency.
项目团队在项目管理和交付效率方面取得了显著进步。