| 1. | They drove a tunnel through the rock . 他们凿通一条穿过岩石的隧道。 |
| 2. | The exit of the tunnel is concealed . 地道的出口开在隐秘的地方。 |
| 3. | Then he made his way to the tunnel mouth . 于是他走到隧道入口。 |
| 4. | The rock was caverned out to make a tunnel . 挖空岩石造隧道。 |
| 5. | This phenomenon is called tunneling . 这个现象叫做隧道效应。 |
| 6. | I went to the tunnels of the fortress . 我去了要塞的地道。 |
| 7. | The tunnel zips traffic under the mountain . 那山洞使来往车辆得以在山底下飞驶。 |
| 8. | Forty-two years later a tunnel was actually begun . 四十二年后,隧道真的动工了。 |
| 9. | The prisoners used the tunnel to escape from jail . 囚犯们利用这条地道越狱逃跑了。 |
| 10. | Traffic was bottled up in the tunnel . 隧道停止通行。 |