名词
中文翻译：焦虑
同义词：
['anxiety', 'apprehension', 'nervousness']
例句：
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1. She was so anxious about the exam that she couldn't sleep last night.
她对考试非常焦虑，以至于昨晚都没能入睡。
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2. He felt a deep sense of nervousness before the big speech.
在那场重要的演讲前，他感到非常紧张。
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3. Her anxiety grew as the deadline for the project approached.
随着项目的截止日期临近，她的焦虑感越来越重。