形容词
中文翻译：悲伤的
同义词：
['depressed', 'disheartened', 'gloomy', 'melancholy']
例句：
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1. She was sad to hear that her parents had passed away.
她听到父母去世的消息时感到很难过。
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2. The news of the accident left everyone in a state of sadness.
事故的消息让每个人都感到悲伤。
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3. His loss of his job has made him feel very sad.
他的失业让他感到非常悲伤。