形容词
中文翻译：悲伤的
同义词：
['depressed', 'disheartened', 'sorrowful']
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 his accident left him in a state of sadness.
他事故的消息让他陷入悲伤之中。
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3. His loss is a source of sadness for everyone around him.
他的失去让周围的人都感到悲伤。