Bedrock

(n.)

1. a strong base for sth, especially the facts or the principles on which it is based

牢固基础；基本事实；基本原则

e.g. The poor suburbs traditionally formed the bedrock of the party's support.

贫穷的郊区在传统上构成了支持该党的牢固基础。

e.g. Honesty is the bedrock of any healthy relationship.

诚实是维持一切良好关系的基本原则。

e.g. A free and open press is part of the bedrock of democracy and development.

2. the solid rock in the ground below the loose soil and sand

基岩（松软的沙、土层下的岩石）

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