原级：borderline
1. borderlines
1. He also warned that every enemy move in the Gulf and on Iranian borderlines is under the full surveillance of the IRGC forces.
2. The Olympics has a mission to promote understanding across political and cultural borderlines.
3. On a map published by Japan between 1783 and 1785, the islands were marked within China's borderlines.
4. On a map published by Japan between 1783 and 1785, the Diaoyu Islands were marked as within China's borderlines.