名词
中文翻译：Unknown
同义词：
['mirror', 'telescope', 'spyglass', 'periscope']
例句：
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1. The astronomer used a sideroscope to observe the stars.
天文学家使用望远镜来观察星星。
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2. The spyglass allowed her to see through the fog and catch a glimpse of the enemy camp.
间谍镜让她能够透过雾气看到敌人的营地。
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3. The periscope was a crucial tool for the explorers during their journey to the South Pole.
潜望镜是探险家们在前往南极途中的重要工具。