In the engine's producing, researching, using and repairing, engine - testing is the linchpin.在发动机的生产研究和应用维修中, 发动机检测是其关键环节.But the linchpin that network channel builds is letter platform build.但网络渠道建设的关键是诚信平台的搭建.He ...

linchpin的音标：linchpin的英式发音音标为：['lɪntʃpɪn]linchpin的美式发音音标为：['lɪntʃˌpɪn]...

linchpin的复数形式为：linchpins...

n.关键...