| 例句 |
In tin mining today, workers excavate tunnels horizontally from a vertical shaft.如今开采锡矿，工人们从竖井中横向开挖隧道。They were tunnelling into the mountainside.他们正在山腰上挖隧道。She designs machines that are used to bore tunnels.她设计挖隧道的机器。Special drilling equipment is being used to tunnel beneath the sea bed.在海底下面挖隧道用的是特殊的钻探设备。The machine they used to bore the tunnel is the size of a two storey house.他们用来挖隧道的机器有两层楼的房子那么大。 |