名词中文翻译
中文翻译：外层空间
同义词：
['surrounding space', 'outer space', 'periphery']
例句：
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1. The astronauts were exploring the periphery of the moon.
宇航员们在探索月球的外围。
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2. The research team is studying the periphery of the galaxy.
研究小组正在研究银河系的外围。
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3.The city's periphery is experiencing a significant increase in crime rates.
该市的外围地区犯罪率显著上升。