形容词
中文翻译：独自的
同义词：
['solitary', 'solitary', 'single', 'alone']
例句：
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1.The lone astronaut in space is always a source of fascination.
太空中的孤独宇航员总是令人着迷。
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2.He was solitary in his work that he rarely had time for socializing.
他在工作上非常独立，几乎没有时间社交。
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3.She felt lonely even though she had friends nearby.
尽管她身边有朋友，但她还是感到孤独。