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 雙葉豎旋橋leaf bascule bridge 雙葉豎旋橋;單葉豎旋橋twin -leaf bascule bridge 雙翼衡重式仰開橋single -leaf bascule bridge 單葉豎旋橋leaf of bascule bridge 豎旋橋橋翼 返回 bascule leaf