相关单词近义词 substratum 基础, solid rock 坚石(基岩), base 底部, foundation 根基, basis 基础, core 核心, heart 心, root 根, anchor 锚, basics 基本因素, basic principle 基本原理, fundamentals 基本原则, fundamental principle 基本原理临近词bedroom, bedlam, bedrocks, bedrock scour, bedrock price, bedrock values, bedrock relief, bedrock surface, bedrock section, bedrock property, bedrock formation, bedrock condition相似词bedpan, bedpost, bedraggled, bedridden, bedroom, bedroom community, bedroom tax, -bedroomed, 返回 bedrock