名词
中文翻译：集中
同义词：
['concentrate', 'concentrate on', 'focus']
例句：
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1.The teacher asked the students to concentrate on their work.
老师要求学生们集中精力完成作业。
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2. The scientist concentrated his attention on the experiment.
科学家将注意力集中在实验上。
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3. She focused her energy on completing the project.
她把精力集中在完成这个项目上。