基本解釋[經(jīng)濟(jì)學(xué)]伸縮橋詞組短語短語retractile e bridge 伸縮橋bridge retractile joint 橋梁伸縮縫retractile bridge更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)伸縮橋