名词
中文翻译：悲伤
同义词：
['depression', 'melancholy', 'sorrow']
例句：
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1.She sat alone in the park, feeling a deep sadness.
她独自坐在公园里，感到深深的悲伤。
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2.The news of his death has left her with a deep sadness.
他去世的消息让她感到非常悲伤。
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3. Sadness is a natural response to loss and grief.
悲伤是对失去和悲痛的自然反应。