名詞用法：
A tunnel is a long passage which has been made under the ground, usually through a hill or under the sea.
The Channel Tunnel enables you to travel by train from Paris to London in three hours。
動詞用法：
They tunnelled into solid rock. 他們在堅硬的岩石中挖掘隧道。
The engineers had to tunnel through solid rock. 工程師們需要在堅硬的岩石中開鑿隧道。
特殊用法：
The escape tunnel only gave them a 10-minute lead. 逃生隧道只給他們十分鐘時間。
Ready to bust into the escape tunnel. 準備衝進逃生隧道。
通過上述句子，我們可以看到"tunnel"的不同用法和含義，包括作為名詞時的定義、作為動詞時的動作，以及在特定情境下的套用，如逃生隧道。