名词
中文翻译：双洞隧道
同义词：
['double tunnel', 'twin tunnels']
例句：
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1.The twin tunnels were built to connect two cities.
这两个双洞隧道是为了连接两个城市而建造的。
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2. The tunnel was so narrow that only one person could pass through at a time.
这个隧道太窄了，只能一个人同时通过。
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3. The tunnel is used for transportation and recreation.
这个隧道用于交通和娱乐。