英語時尚口語情景對話 流行趨勢 Unit 4：高新科技4-3

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Unit 4：Hi-technology 4-4-3 mp3

英語時尚口語情景對話4：高新科技4-4-3

The devil knows many things because he is old.

人老見識廣。

Dialoug 3

3

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

A:麥克，現(xiàn)在好多人都在談?wù)摷{米。它到底是個啥呀?

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

B:納米是個長度單位。一納米等于十億分之一米，大概比一個原子小10倍吧。

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

A:嗯…恐怕還不太容易想像得出它的具體大小呢。

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:這樣說吧。10納米比一根頭發(fā)直徑的1/1000還短。一英寸所含的納米數(shù)量等于400米所含的英寸數(shù)。

A:I see.Thank you.

A:這樣說我就明白了。謝謝啊。