TOPIK | ☆☆ | Railways, airlines, communication services provided within a country only.
| LOCAL LINE; DOMESTIC SERVICE | LÍNEA NACIONAL | LIGNE DOMESTIQUE, LIGNE INTÉRIEURE, SERVICE INTÉRIEUR, SERVICE DOMESTIQUE:
| 国内线 | こくないせん【国内線】。こくないろせん【国内路線】 | 국내선 | tuyến quốc nội | |