Using a genotyping machine, Dr. Karlsson is able to simultaneously analyse thousands of regions of DNA利用基因分型设备，卡森博士可以同时分析取自生病的和健康的拳师狗

be able to:会； 能

He stepped up so as to be able to speak.

为看得更清楚，他上到高处。

They appear to be able to handle the problem.

他们似乎可以处理这个问题。

all of a sudden you have a huge number of differences.这里的数据突然出现了很大的差别

a huge number of:大量的

London has a huge number of immigrants, coming from different parts of the world.

伦敦有大量移民,来自世界各地。

go across the genome from chromosome one to chromosome two and across is that most of the points从染色体一比较到染色体二看到大多数的点

go across:渡过； 越过

The railway goes across the bridge.

那条铁路跨桥而过。

Did your speech go across to the crowd all right?

你的演讲群众理解了吗?