名词
中文翻译：山顶隧道
同义词：
['peak tunnel', 'summit tunnel']
例句：
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1.The summit tunnel is a crucial part of the mountain climbing route.
山顶隧道是登山路线中至关重要的一部分。
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2. The summit tunnel was built to provide access to the top of the mountain.
山顶隧道是为了提供通往山顶的通道而建造的。
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3. The summit tunnel is often used as a shelter during harsh weather conditions.
在恶劣天气条件下，山顶隧道常被用作避难所。