The frontier people came from the East, the South and the Indiana Territory.

边疆上的人来自东部、南部和印第安纳州。

The fact is that the frontier is unguarded.

现在的实际情况是边境目前无人把守。

There were no shops on the frontier.

边疆没有商店。

Most of the frontier still lies ahead.

大部分的未知还在前方。

Survivors head out across the frontier.

战争幸存者从拓荒线上的各处进发。

There were many guards and soldiers along the frontier.

沿着边界设有许多守卫和士兵。

Some women brought a spinning wheel to the frontier.

一些女人带着纺车来到边疆。

A world where you're living at the frontier.

一个让你身居前沿的世界。

Illness was a big danger on the frontier.

在边疆上，疾病是一大威胁。

Yet there are still places along the frontier where rivals co-exist.

然而，边界地区仍然有一些竞争对手共存的地方。

The real war was being slogged out somewhere beyond the frontiers.

真正的战争正在前线某处艰难地进行着。

But antislavery forces in the North want to keep the frontier free.

而北方的废奴势力则要维护边远地区的自由。

A closer look at the technology on the frontiers of medical science.

让我们和医学前沿技术来一次近距离接触。

32.you should go to the frontier defence office to attend other formalities.

你需要到边防部门补办其他手续。

It had closed the frontier a year ago for what it said were security reasons.

一年前，委内瑞拉基于安全原因关闭了边界。

It means expanding the frontiers of knowledge, your own, and then the world.

它意味着拓展你自己知识的前沿，然后再扩充到全世界。

On the frontiers they met fierce resistance and defeat that spelled eventual disaster.

在边界地区他受到了猛烈的抵抗，失败了，这一失败引起了灾难性后果。

Ten minutes later they were crossing the frontier that separated civilization from savagery.

几分钟之后已经跨过了文明与野蛮的边界。

He said Ukrainians would defend their country if the Russians crossed the frontier.

他说，如果俄罗斯人越过边境，乌克兰人将保卫自己的国家。

Humans tried to extend the frontiers of their territory, but they knew their limits.

他们很想扩张领土，但明白自身局限。