This was our line of defense.

“我们的防线就设在这儿的。”

But the first line of defense is prevention.

但第一道防线是预防。

One line of defense is video encryption software.

防线之一是视频加密软件。

That's the last line of defense.

这是最后一道防线。

One of our first lines of defense is habitat management.

我们的第一道防线是栖息地管理。

Prevention is the first line of defense against deadly diseases.

预防是抵御多种致命疾病的第一道防线。

Quality control is one of their earliest lines of defense.

质量控制是他们防御工作的首要步骤之一。

She thought rapidly, trying to lay a line of defenses.

她心里急忙思考，要设置一道防线。

And that's the first line of defense against the cold.

这是抵御寒冷的第一道防线。

This surface is also the body's first major line of defense.

皮肤也是身体的第一道防线。

" The resource officer is the first line of defense, " said Keith Mott.

“驻校警察是第一道防线，”基思·莫特说。

Like all creatures, an insect's first line of defense is escape.

跟所有生物一样昆虫们的防御方法也是走为上策。

The universities are a last line of defense, and must remain that way.

大学是最后一道防线，必须保持下去。

The goats eat it up, creating a line of defense for local firefighters.

山羊吃掉了它，为当地消防员建立了一道防线。

If war comes, this will be America's first line of defense.

一旦开战 这里将是美国的第一道防线。

The only line of defense he has is his reputation and his humanitarian work.

他唯一的防线就是自己的名声和所做的人道主义工作。

These caps, called telomeres, are one line of defense against aging in many species.

这些连接键叫做端粒体，就是它们帮助这些生物抵抗衰老。

And these cells are part of the first line of defense against invading pathogens.

这些细胞是抵御入侵病原体的第一道防线的一部分。

The first line of defense was to dam the region's flood-prone estuaries.

第一道防线，是在该地区易受洪水侵袭的河口筑坝。

The Interceptor is an opportunity to have a last line of defense on this urban waterway.

拦截机是在这条城市水道上构筑最后一道防线的机会。