名词
中文翻译：烦恼
同义词：
['worry', 'trouble', 'annoyance']
例句：
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1. I'm really worried about the exam results.
我非常担心考试的结果。
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2. She was troubled by the sudden change in weather.
她被突如其来的天气变化所困扰。
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3. He felt annoyed with his boss for not returning his calls.
他因为老板没有回他的电话而感到恼火。