underpass

汉语翻译

英语解释：

名词 underpass:

1. an underground tunnel or passage enabling pedestrians to cross a road or railway
   同义词：subway

例句：

1. Is that why they're constructing so many underpasses, overpasses and highways?
   那就是他们建这么多天桥、地下通道和公路的原因吗？