副词
中文翻译：到底
同义词：
['indeed', 'truly', 'actually']
例句：
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1. I really want to know the answer to this question.
我真的想知道这个问题的答案。
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2. She is determined to succeed in her studies.
她决心在她的学习中取得成功。
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3. The teacher asked us to clarify our understanding of the concept.
老师要求我们澄清对这个概念的理解。