Groundwater commonly collects in stream drainages but may remain entirely beneath the surface of dry stream-beds in arid regions.
地下水通常聚集在河流流域,但在干旱地区,地下水也可能完全保留在干涸河床的表面之下。
In particularly wet years, short stretches of an otherwise dry stream-bed may have flowing water because the water table rises to intersect the land surface.
在气候特别湿润的年月里,平常干涸的河床下游可能会有水流动,因为地下水在那里位抬升到了地表以上。
Underground water resources, or oases, sufficient to support irrigated agriculture are found in dry stream beds and depressions.
在干河床和洼地处可找到充足的地下水资源或者绿洲来支持灌溉农业。
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