- 释义：
- n.沙岩
- 例句：
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An aquifer is a water - bearing rock stratum such as sandstone and chalk.
地下蓄水层是一些有水的岩石层,如沙岩和白垩岩.
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Houses in the area are built of sandstone.
这个地区的房屋都是用砂岩建的.
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The Point Lookout is not a uniform blanket sandstone.
了望角砂岩并不是一个单一的盖层状砂岩.
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