形容词
中文翻译：悲伤的
同义词：
['depressed', 'disheartened', 'gloomy']
例句：
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1. She looked at the sad expression on her friend's face and felt a pang of sympathy.
她看着朋友脸上悲伤的表情，感到一阵同情。
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2. The news of their divorce saddened everyone in the office.
他们离婚的消息让办公室里每个人都感到难过。
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3. The old house looked sad and neglected, with peeling paint and broken windows.
那所旧房子看起来又破又脏，油漆剥落，窗户破碎。