名词
中文翻译：飞碟
同义词：
['UFO', 'saucer', 'flying disc例句：1. The aliens were seen flying a saucer over the city.（外星人被看到在城市上空飞行一个飞碟。）']
例句：
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1. The aliens were seen flying a saucer over the city.
外星人被看到在城市上空飞行一个飞碟。
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2.The scientist discovered a saucer in the sky.
科学家在天空中发现了一艘飞碟。
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3.The saucer disappeared into thin air.
飞碟消失在空气中。