名词
中文翻译：焦虑
同义词：
['anxiety', 'nervousness', 'unease']
例句：
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1. She was so anxious about the examthat she couldn't sleep last night.
她对考试感到非常焦虑，以至于昨晚都没能入睡。
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2. The driverwas nervous as he drovethrough the dark tunnel.
司机在穿过黑暗的隧道时感到紧张。
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3. Thesudden news of her illness made her feeluneasy and worried.
她突然听说自己生病的消息，感到不安和担忧。