名词
中文翻译：上密西西比河期同义词
同义词：
['Upper Mississippian Period', 'Upper Mississippian Culture']
例句：
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1. The Upper Mississippian artifacts are a testament to the rich history of the region.
上密西西比河时期的文物是该地区丰富历史的见证。
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2. The Upper Mississippian period is often referred to as the "Dark Ages"in Europe.
上密西西比河时期在欧洲常被称为“黑暗时代”。
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3.The Upper Mississippian culture was characterized by its agricultural practices and the development of early writing systems.
上密西西比河文化以其农业实践和早期书写系统的形成而著称。