短語詞組短語bascule leaf west bank 上開橋扇single leaf bascule bridge 單扇上開橋double -leaf bascule bridge 雙葉竪鏇橋leaf bascule bridge 雙葉竪鏇橋;單葉竪鏇橋twin -leaf bascule bridge 雙翼衡重式仰開橋single -leaf bascule bridge 單葉竪鏇橋leaf of bascule bridge 竪鏇橋橋翼 返回 bascule leaf