subway network造句怎麼寫

"It hasn't come cheap, though. The budget for organizing the Games is US$2.5 billion, with another US$5.8 billion to cover various building projects. These include a new subway network, new roads, a new local railway and a new tram system. "

Zhabei District railway, highway, elevated, light rail, subway network arranged in a crisscross pattern, Shanghai city is the best center city traffic accessibility.