bedrock
Definition
The solid rock layer beneath surface materials; a fundamental basis or foundation.
中文 地表材料之下的坚实岩层;基本基础或基础
Example
"Trust is the bedrock of any strong relationship."
The solid rock layer beneath surface materials; a fundamental basis or foundation.
中文 地表材料之下的坚实岩层;基本基础或基础
"Trust is the bedrock of any strong relationship."