形容词
中文翻译：边疆的
同义词：
['marginal', 'bordering']
例句：
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1. The city is located at the epicenter of the continent.
这座城市位于大陆的中心。
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2. The research was conducted on the epicenter of the phenomenon.
这项研究是在现象的中心进行的。
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3. The company's headquarters are located in the epicenter of the industry.
公司的总部位于行业的中心。