名词
中文翻译：练习题
同义词：
['problem', 'question']
例句：
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1. She spent hours solving the math exercises in her textbook.
她花了几个小时解决课本上的数学练习题。
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2. The teacher asked us to solve the problems on the board.
老师让我们在黑板上解决问题。
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3. Solving these problems will help you understand the material better.
解决这些问题将帮助你更好地理解材料。