名词
中文翻译：问题
同义词：
['question', 'issue', 'matter例句：1. This is a difficult question that needs to be solved.（这是一个需要解决的难题。）']
例句：
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1. This is a difficult question that needs to be solved.
这是一个需要解决的难题。
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2.The teacher asked the students to solve the problem together.
老师要求学生们一起解决这个问题。
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3. The answer to the question is simple: it's raining.
这个问题的答案很简单：正在下雨。