您要查找的是不是：
- They are building a submarine cable tunnel. 他们正在建设一条海底电缆隧道。
- They are digging through the hill to make a tunnel. 他们正在凿山建一条隧道。
- The kid dug a tunnel in the sand. 小孩在沙堆里挖了一个地道。
- The two lanes merge going into the tunnel. 两条车道会合后引入隧道。
- The truck cleared the tunnel safely. 卡车安全地通过了隧道。
- He has to stoop to get through the tunnel. 他得弯下腰走过地道。
- The roar of the train reverberated in the tunnel. 火车的轰隆声在隧道里回荡。
- The organizer was familiar with the protocol of royal visits. 组织者熟悉国王出访的礼仪。
- The prisoner escaped by digging an underground tunnel. 囚犯挖了一条地道逃跑了。
- The delegates have to be seated according to protocol. 代表们须按礼仪要求就座。
- The roof of the tunnel caved in (on the workmen). 隧道顶坍塌(压住工人).
- Select the protocol tab and un-check all protocol except modem. 选择Protocolstab, 不要选取所有的协议，除Modem之外。
- protocol Tunnel 协议隧道
- The roof of the tunnel was supported by wooden props. 坑道顶用木柱支撑。
- A tunnel dug to intercept and destroy an enemy's mine. 对抗地道截断或破坏敌人坑道而挖的地道
- It was a gross breach of protocol. 这是粗暴违反外交礼节的行为。
- Suddenly the train roared into a tunnel and everything was black. 突然火车轰隆隆地驶入一个隧道，四周的一切都漆黑一团。
- The tunnel contract to a narrow passageway as you go deep. 再往里走，坑道缩小成了一条窄窄的通道。
- The railroad passes under the mountain through a tunnel. 铁路穿过隧道从山下通过。
- These ports use the UDP protocol. 这些端口使用UDP协议。
