形容词
中文翻译：焦虑的
同义词：
['nervous', 'restless', 'agitated']
例句：
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1.She was so fretful about the exam that she couldn't sleep last night.
她对考试非常焦虑，以至于昨晚都睡不着。
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2. The baby is fretful because he doesn't like being held by his mother.
婴儿因为不喜欢被妈妈抱着而感到焦躁不安。
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3.The driver was fretful because of the heavy traffic on the highway.
司机因为高速公路上的交通拥堵而感到焦躁不安。