相关单词同义词key, crux, 近义词 kingpin 中心立轴, fulcrum (杠杆的)支点..., cornerstone 隅石, hub 中心, essential 本质的, prerequisite 先决条件, sine qua non 必要条件, requirement 必要条件, lynchpin 轮辖, backbone 脊骨, keystone 拱顶石, mainstay 主要支持, anchor 锚临近词Lincoln, Lin, linchpin and gear conduct相似词limpet, limpet mine, limpid, limy, Lincolnshire, linctus, linden, Lindy hop, 返回 linchpin