tunnellv.挖隧道挖隧道[坑道]前进.tunneln.隧道；地道；洞穴v.挖地道；挖隧道tunnel Corti'sTunnel Monitor隧道监控tunnel a river在河底下挖掘隧道Tunneling time隧穿时间tunnel cutting洞身开挖tunnel warfaren.地道战tunnel' s exitTunnel testing风洞实验tunneling mode掘进模式tunnel project隧道工程