西藏有边境县21个，边境乡104个，边境地区总面积34．35万平方千米，人口40余万。西藏同邻国及地区接壤的陆地边境线长3 842千米。全区共有5个国家边境口岸，已开放的边境口岸有樟木、普兰、吉隆、日屋。其中，樟木、普兰、吉隆口岸为国家一类边境口岸
突尼斯内政部和国防部表示，由于这次袭击的影响，突尼斯政府已经关闭了与利比亚之间的两个边境口岸。
The Interior and Defense ministries said that the Tunisian government has closed its two border crossings with Libya because of the attack.
墨西哥的港口与边境口岸一直是大毒枭间的必争之地。
Mexico's ports and border-crossings have always been in dispute among the big players in the drugs business.
出境入境的机场、港口、火车站和其他边境口岸，边防海防哨所。
Airports, harbours and railway stations of entry or exit and other frontier ports, frontier stations and coastal defence stations.
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