| 例句 |
The cave was formed by the action of an underground river.这个洞穴是在地下河的作用下形成的。The main problem for engineers was the location of underground rivers in the area.工程师们面对的主要问题在于确定该地区地下河的位置。Water is piped into the cabin from an underground stream.水从地下河通过管道输送到小屋。The groundwater is only feet beneath the city streets.地下河距离上面的城市街道只有几英尺。 |