动词短语
中文翻译：专心致力于
同义词：
['devote oneself to', 'concentrate on', 'focus on']
例句：
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1. He has been studying for the exam all morning and is now deeply concentrating on his work.
他一直在为考试学习，现在正专心致志地工作。
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2. The scientist was deeply concentrating on her research when she suddenly heard a noise outside.
科学家正在专心研究时，突然听到外面有声音。
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3. She decided to devote more time to her studies after realizing her grades were not improving.
她意识到成绩没有提高后，决定更多地投入到学习中。