武器系统

They drilled three-man crews,

士兵们三人一组

so that you would have one man bracing it with his feet.

一个用脚固定着弓

He would then pass it to a man standing who would load it,

然后旁边的士兵上箭

who would pass it to a forward man who would shoot it,

接着交给在他前方的士兵射击

by which time the man on the ground

这时第一个士兵又得到时间

had got round to the front,

做下一轮的准备

and so the army could advance with this constant fusillade,

这样 整个军队可以万箭齐发

this constant barrage of crossbow arrows.

稳步挺进

It really was the most aggressive mechanism

对于发展军队而言

for advancing an army.

这是很具有攻击性的武器

A new innovation: standardized, interchangeable parts.

它的创新点在于标准统一 可交换零件

The crossbow is the first modular weapon system

十字弓是历史上首个

basically in history.

组合式的武器系统

So now you have a weapon system

如果一个武器系统

where I can have extra spare parts,

有很多零部件

extra strings, extra steel, extra wood.

诸如额外的绳子 钢铁或木头

You can build it quickly,

你就能够很快地造好该武器

you can replace its parts very easily,

轻松替换其零部件

you can fix it quickly.

也能快速将其组装好

It will be 2000 years...

大约两千年以后

before standardized mass-produced parts

标准化大规模生产

become common in other weapons.

在其它武器装备生产中得以普及

重点讲解

1、advance

（常指为攻击而）前进，推进

Reports from Chad suggest that rebel forces are advancing on the capital.

来自乍得的报告显示叛军正向首都推进。

The water is advancing at a rate of 5cm a day.

水位正以每天5厘米的速度上升。

（尤指知识）发展，进步

Medical technology has advanced considerably.

医学技术突飞猛进。

Japan has advanced from a rural, feudal society to an urban, industrial power.

日本已从封建农业社会发展成一个城市化工业强国。

贷给；预付；预支

I advanced him some money, which he would repay on our way home.

我先借给他一些钱，在我们回家的路上他会还给我的。

The bank advanced $1.2 billion to help the country with debt repayments.

银行预支12亿美元帮助该国偿还债务。

提出（理论、论点）

An important set of ideas have been advanced by the biologist Rupert Sheldrake.

生物学家鲁珀特·谢尔德雷克已提出了一整套重要的观点。

2、aggressive

好斗的；挑衅的

Some children are much more aggressive than others.

一些孩子比其他孩子更好斗。

These fish are very aggressive.

这些鱼极具攻击性。

有闯劲的；积极进取的

He is respected as a very aggressive and competitive executive.

他是一位锐意进取、竞争意识很强的主管，颇受尊敬。

The Zambian game is much more aggressive than European soccer.

赞比亚的这种运动比欧式足球要激烈得多。