词汇：bedrock

n. 根底；基岩；基本原理

相关场景

And the mortgage continues to be the bedrock on which this economy is built.

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An ice age here, a million years of mountain-building there, plates of bedrock grinding against each other over a span of millennia... 233INT -- ANDY'S CELL -- NIGHT (1949) 233 Andy stands peering at the small hole left by the fallen chunk. Carefully runs his fingertip over it.

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