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1. Oxford American Dictionary

   bedrock

   • IPA[ˈbedˌräk]

   美式

   • n.
     solid rock underlying loose deposits such as soil or alluvium.；the fundamental principles on which something is based

   • noun: bedrock, plural noun: bedrocks

2. • 釋義

   n.

   名詞

   • 1. solid rock underlying loose deposits such as soil or alluvium. 同義詞 substratum, substructure, understructure, solid foundation, base, ... 更多basis, underpinning, bed, rock bed
   • ▪ the fundamental principles on which something is based honesty is the bedrock of a good relationship 同義詞 core, basis, base, foundation, root, ... 更多roots, heart, backbone, essence, nitty-gritty, informalnuts and bolts