名词
中文翻译：改进
同义词：
['enhancement', 'enhancement', 'amelioration']
例句：
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1. Thecompany's performance has seen significant improvement since the new manager took over.
自从新经理上任以来，公司的绩效有了显著的改善。
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2. The teacher emphasized the importance of self-improvement in his lecture.
老师在讲座中强调了自我提升的重要性。
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3. The project team has made great progress in improving the efficiency of their operations.
项目团队在提高工作效率方面取得了很大进展。