名词
中文翻译：环状区域
同义词：
['peripheral region', 'peripheral zone']
例句：
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1.The periscian region is a crucial area for the development of the city.
环状区域是城市发展的关键区域。
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2. The periscian region is home to many rare species of plants and animals.
环状区域是许多稀有植物和动物的家园。
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3. The periscian region is an important source of natural resources for the surrounding area.
环状区域是周围地区重要的自然资源来源。