形容词
中文翻译：孤独的
同义词：
['lonely', 'solitary', 'solitude']
例句：
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1. She spent the evening alone in her room.
她独自待在房间里度过了整个晚上。
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2. The old man was lonely and missed his family.
那位老人感到孤独，想念他的家人。
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3. He felt lonely even when surrounded by people.
他即使周围有许多人，也感到孤独。