单词frontier
n.: 边境；边界；边缘；国界
adj.: 边疆的；边地的
网络: 国境；新领域；前线
国界；边界；边境:
a line that separates two countries, etc.; the land near this line
（尤指 19 世纪美国西部的）开发地区边缘地带，边远地区:
the edge of land where people live and have built towns, beyond which the country is wild and unknown, especially in the western US in the 19th century
（学科或活动的）尖端，边缘:
the limit of sth, especially the limit of what is known about a particular subject or activity
新垦地的,边地的
边疆的
范围
未开发地区
(知识等的)尚待开发的领域
尖端,新领域
边境城市
新开辟地,边地;〔美国〕边疆城市
国境;边疆
边界,边境;国界;边界地区
阵地,前沿
边疆;边界,边缘
复数：frontiers
v.+n.:
open frontier,cross frontier
n.borderboundarylimitedgeborder line
and it might be said after all that, at first sight, our science certainly seems to have re-adopted the solution of closing the frontier.
我们终究要说，乍看来，我们的科学重新采用的解决方法，似乎是将这个边境封闭。
All along the frontier, German preparations for invasion were intensifying, but Soviet forces had not yet even begun to mobilise.
沿着整个边境，德国人一直在加强武装入侵的准备工作，而苏联军队甚至于还没有开始进行动员。
But even if he had not been cast as a heroic figure in Kentucke, residents of Kentucky would still honor him as that state"s frontier hero.
不过，即便没有被塑造成史诗人物，肯塔基地方的居民们依然敬爱他，将他视为这个边陲之地的大英雄。
Under the Treaty of Rome, however, the European Union has behaved as if the Med were a frontier, rather than an organising principle.
然而在罗马条约下，地中海在欧盟仅似一个边缘地带，而不是主要组成部分。
He thought of the surging great river flowing towards the frontier. Huh, the language people used there was of a completely different order.
他想起了那条浩浩荡荡地向边境流去的大河，哦，在那条河上人们讲的是另一套行话。
He was an original pioneer into the dark frontier of chaos before it gelled into a scientific theory and faddish field of study.
早在混沌形成科学理论、成为时尚的研究领域之前，他就是探索这一黑暗领域的一位先驱。
One day, one of his horses ran out of his stall, and passed through the frontier into where the Huns lived.
一天，他的一匹马逃出马厩，越过边界，跑到了胡人居住的地方。
Frontier watches in Peshawar, NWFP"s edgy capital, speculate that the army may be trying to re-enlist the support of these brigands .
白沙瓦的边境观察员们（西北边疆的前卫资本）推测军队可能正试图重新取得这些强盗的帮助。
In a media world where ads seem to be everywhere, body billboards could be the final frontier.
在如今广告似乎无处不在的媒体世界，人体广告牌似乎是仅剩的开拓领域。
Your father DID not hesitate an instant, and the sum was sent to the frontier of piedmont, with a passport signed for Italy.
令尊毫不迟疑，差人把那笔款子送到皮埃蒙特边境上，还带去了一张去意大利的护照。