名词
中文翻译：Unknown
同义词：
['confused', 'bewildered', 'lost', 'puzzled']
例句：
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1. I'm feeling very confused about the problem.
我对这个难题感到很困惑。
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2. He was so lost in thought that he didn't notice the time passing.
他沉浸在思考中，以至于没有注意到时间流逝。
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3. The puzzled look on her face made me wonder what she was thinking.
她困惑的表情让我想知道她在想些什么。