tunnel work

例句：

1. 1. The tunnel work was completed ahead of schedule.
   隧道工程提前完成。
2. 2.Tunnel work is a challenging but rewarding field.
   隧道工作是一项具有挑战性但回报丰厚的领域。
3. 3. The engineers were working tirelessly to complete the tunnel work before winter.
   工程师们正努力不懈地完成隧道工作，以免在冬季前完工。