短語詞組短語alternate extended route 替代擴充路由alternate -route pattern 翻譯alternate circuit route 替用電路路線Alternate flight route 備用飛行航路alternate path route 替代路徑路由alternate e route 更替路由alternate air route 備份航路automatic alternate route 自動迂回路由AR Alternate Route 迂回路由 返回 alternate route