名词
中文翻译：正式的集中注意力
同义词：
['formal concentration', 'formal focus', 'formal attention']
例句：
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1. During the presentation, he maintained a formal concentration on his speech.
在演讲期间，他全神贯注地听着自己的演讲。
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2. The teacher instructed the students to maintain a formal concentration during the exam.
老师要求学生们考试时保持专注。
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3.The artist focused his formal concentration on creating a masterpiece.
这位艺术家全神贯注地创作了一件杰作。