underpasses

例句:

• 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 ?
  来自辞典例句
• Many pedestrians cross the road recklessly instead of using crosswalks or underpasses.
  许多行人任意穿越马路,而不走斑马线或地下道.
  
• The right solution is to lay down more gallop bridges , overpasses and underpasses in big cities.
  他们说如今交通比过去拥挤的多,尤其是在交通高峰期.
  
• There are underpasses for pedestrians but these are not signed for cyclists.
  来自THETIMES