bedrock [i `r!k | `r(k ]    (¼øÀ§: 17494 - ´ëÁ¹ ¼öÁØ)  
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Mean The solid rock that underlies loose material, such as soil, sand, clay, or gravel.
¿¹¹® 1. the bedrock price (ÃÖÀú °¡°Ý)
2. bedrock facts (±Ùº»ÀûÀÎ »ç½Ç)
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