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单词
bedrock
释义
bedrock
NOUN
/ˈbedˌrɒk/
1
the ideas and principles on which a belief or system is based 基础；基本思想；基本原则
+of
These are the principles that form the bedrock of American society.
这些是构成美国社会基础的基本原则。
2
the solid rock under the ground that supports the soil above it 基岩