Related topics: Technology
king·pin /ˈkɪŋˌpɪn/ noun [countableC usually singular] 1 IMPORTANTthe person or thing in a group that is the most important or that has the most power – used especially in news reports 〔团体中〕最重要的人[事物],领袖〔尤用于新闻报道中〕 2. technicalT a thin strong piece of metal used in hinges 〔铰链的〕中心轴,转向立轴