fully lined tunnel

例句：

1. 1. The tunnel is fully lined with bricks and stones.
   这个隧道被砖石完全衬里。
2. 2.The engineers had to fully line the tunnel to prevent leaks.
   工程师们不得不把隧道完全衬里以防止泄漏。
3. 3. The tunnel was fully lined with lights to make it safer for pedestrians.
   隧道被完全衬里上灯，使行人更安全。