名词
中文翻译：Unknown
同义词：
['external object', 'foreign object', 'guest', 'visitor']
例句：
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1. The museumhas a collection of ancient artifactsfrom around the world.
博物馆收藏了来自世界各地的古代文物。
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2. She was surprised to findthat her new friend was an outsider.
她惊讶地发现她的新朋友是一个外来者。
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3. The company welcomed a group offoreign investors as part of its expansion plans.
该公司欢迎了一批外国投资者，作为其扩张计划的一部分。