相关单词近义词 foundation 根基, basis 基础, bedrock 岩床, underpinning 支撑, grounding 基础训练, root 根, source 来源, base 底部, principle 原理, cornerstone 隅石, backbone 脊骨, mainstay 主要支持, anchor 锚, linchpin 制轮楔, headstone 墓石, lynchpin 轮辖, key 键临近词keyword, keynote, Keystonea, Keystoner, keystone ring, keystone wave, keystone sack, keystone EIPs, Keystone virus, Keystone State, keystone plate, keystone corner相似词keyhole surgery, Keynesian, keynote, keypad, keystroke, keyway, keyword, kg, 返回 keystone