tunnel
- n. 隧道；坑道；洞穴通道
- vt. 挖；在…打开通道；在…挖掘隧道
- vi. 挖掘隧道；打开通道
英英释意
- 1. a passageway through or under something, usually underground (especially one for trains or cars);
- "the tunnel reduced congestion at that intersection"
- 2. a hole in the ground made by an animal for shelter