英语时尚口语情景对话流行趋势Unit 4：高新科技4-3mp3

第四部分 流行趋势

Unit 4：Hi-technology 4-4-3 mp3

英语时尚口语情景对话4：高新科技4-4-3 mp3

The devil knows many things because he is old.

人老见识广。

Dialoug 3

3

A:Well,Mike, nowadays there's much talk about nanometer.But what on earth is it?

A:麦克，现在好多人都在谈论纳米。它到底是个啥呀？

B:Nanometer is a length scale. It's one billionth of a meter, roughly ten times the size of an individual atom.

B:纳米是个长度单位。一纳米等于十亿分之一米，大概比一个原子小10倍吧。

A:Hmm...it's hard to figure out the exact size,l'm afraid.

A:嗯…恐怕还不太容易想像得出它的具体大小呢。

B:Well,let's make it this way.For comparison ,10 NM is 1000 times smaller than the diameter of a human hair. There are as many nanometers in an inch as there are inches in 400 miles.

B:这样说吧。10纳米比一根头发直径的1/1000还短。一英寸所含的纳米数量等于400米所含的英寸数。

A:I see.Thank  you.

A:这样说我就明白了。谢谢啊。