a permeable underground mass of sand or sandstone (which may contain oil).
| 单词 | θ4955 | 
| 释义 | the world > the earth > structure of the earth > structural features > mass > 			[noun]		 > of sand or sandstone (1)		 sand-body1910 a permeable underground mass of sand or sandstone (which may contain oil).  | 
	
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