基本解释铁路专线英汉例句双语例句It warns that Hong Kong could be hurt without a dedicated link to China's high-speed national rail network.港府告诫称，香港将因未能与中国高速铁路网直接相连而受到损害。词组短语短语dedicated d rail link 铁路专线专业释义交通运输工程铁路专线