railroad junction的用法和樣例：
例句
- Shenyang is not only the capital city of Liaoning Province, but the largest city of Northeast China with the largest railroad hub and airport across the region.
瀋陽不僅是遼寧省的省會，而且也是東北地區最大的中心城市，有著最大的鐵路樞紐和航空港。 - Beslan is an important railway junction, situated on the main line between Rostov-on-Don and Baku, and is the starting point of a branch line to Vladikavkaz.
別斯蘭是重要的鐵路樞紐，位於頓河畔羅斯托夫到巴庫鐵路之間，也是通往弗拉季高加索鐵路支線的起點。
