名词
中文翻译：三州门
同义词：
['three-state gate', 'tri-state border']
例句：
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1. The tri-state gate is a popular tourist destination.
三州门是一个受欢迎的旅游目的地。
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2. The construction of the tri-state gate has been delayed due to weather conditions.
由于天气条件，三州门的建设被推迟了。
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3. The tri-state gate is often used as a symbol of the United States' diversity.
三州门经常被用作美国多样性的象征。