high-speed rail[英][hai spi:d reil][美][haɪ spid rel]高铁; 例句:1.China's high-speed rail ambitions are already global. 中国的高铁野心已经瞄向了全球。 2.Republicans and democrats generally support high-speed rail service. 共和党人和民主党人普遍支持高速铁路服务。