名词
中文翻译：学习
同义词：
['investigation', 'study', 'research']
例句：
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1. He studied hard to pass the exam.
他努力学习通过了考试。
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2. The scientist studied the stars for hours every night.
那位科学家每晚都花几个小时研究星星。
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3. She studied abroad for a year before returning home.
她出国学习了一年才回家。