名词
中文翻译：Unknown
同义词：
['sad', 'melancholic', 'depressive']
例句：
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1. The news of his death was a sad loss for everyone involved.
他去世的消息对每个人都是一个悲伤的损失。
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2. She was deeply melancholic after the loss of her loved one.
失去所爱之人后，她感到非常忧郁。
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3. His depression had worsened since he moved to a new city.
自从搬到一个新城市后，他的抑郁症状加重了。