Translation

• tunnel
• underground passage

Examples

• 日本最长的隧道在哪里？
  Where is the longest tunnel in Japan?
• 观光巴士穿过了一条长长的隧道。
  The sightseeing bus ran through a long tunnel.
• 走进了漆黑的隧道后，我们甚么也看不见。
  On entering a dark tunnel, we could see nothing.
• 新建的隧道比以前的那一条长两倍。
  The new tunnel is twice as long as the old one.