名词
中文翻译：外部枪
同义词：
['external weapon', 'external firearm例句：1. The police were called to investigate the scene of the accident.（警察被叫来调查事故现场。）']
例句：
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1. The police were called to investigate the scene of the accident.
警察被叫来调查事故现场。
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2. He was carrying an external gun in his backpack.
他背包里背着一把外置枪。
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3.The external gun is a popular choice for outdoor activities.
外置枪是户外活动的一个热门选择。