国境的英文：
frontier

They were shot when trying to cross the frontier illegally.
他们在企图偷越国境时被击毙。

Sanitary supervision at frontier ports should be conducted under the direction of the health quarantine officials.
国境口岸卫生监督应在卫生检疫官员的指导下进行。

investigation on the source of infection; retrospective study of the disease under surveillance inside frontier ports
传染源调查;国境口岸内监测传染病的回顾性调查

Those men were scheming to cheat the government by bringing the jewels into the country without paying duty.
那些人不缴关税将珠宝带入国境，图谋以此诓骗政府。

Foreign visitors must register with the state officials on entering the country.
外国旅客一入国境就必须向国家官员办理登记。

Those men were scheming to cheat the government by bringing the jewels into the country without paying duty
那些人想把珠宝带入国境而不缴纳税款,图谋欺骗政府。

Carrying out physical examination and issuing health certificate for food or drinking water handlers at a frontier port
对国境口岸的食品、饮用水从业人员实施健康检查和签发健康证书

You are exploring the frontiers in science.
你在探究科学的新领域。

Sweden has frontiers with Norway and Finland.
瑞典与挪威和芬兰接壤。

We were turned back at the frontier.
我们在边界那儿被赶了回来。

The frontier forces had to operate against the invaders.
边防军不得不对入侵敌人作战。

Professor Field is devoted to the exploration of the frontiers of medicine.
菲尔德教授致力于探索医学研究的新领域。