border frontier

基本解釋

Hotels do border trade frontier.
做邊境貿易的邊疆賓館。
blog.sina.com.cn
"I have been in service for 15 years and I know a lot about the growing veggies now, " said Chen, who served in China's Southwest Yunnnan border frontier before coming to Haiti.
他說：“我已經當了15年的軍人，現(xiàn)在我知道許多種植蔬菜的知識。” 在駐扎海地之前，陳永軍服役于中國西南部的云南邊防前線。
repeatedly transporting persons to illegally cross the national border (frontier), or transporting a large number of persons;
多次實施運送行為或者運送人數(shù)眾多的；

On the triple frontier border town of Ciudad del Este in Paraguay, pirated Chinese Apple, Microsoft and brand name apparel are often smuggled across the border into Brazil for sale nationwide.
FORBES: Introducing The China "HiPhone 5"; Apple Knock-Off Sells For $35
First, they will ponder the idea of an EU border-police to replace national frontier controls.
ECONOMIST: Huddled masses: stay out The