And one of the big problems we're working on today is car safety and efficiency.

而我们今天正在钻研的一个重大问题就是汽车的安全性和效率。

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That dramatic difference has to do with the way car safety systems are designed, at least in older models, according to ABC News.

据abc新闻说，这种巨大的差别缘于汽车安全系统的设计方式，至少老款的汽车是这样。

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For example, if you're speaking on car safety, you can create a very powerful negative visualization by telling the story of someone who died because he didn't wear his seat belt.

比如，你的演讲是关于驾驶安全的，你可以弄一个很震撼的消极案例就像谁谁谁开车没系安全带结果出车祸死了。

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Toyota has given a taste of self-drive car safety technology ahead of the Consumer Electronics Show (CES) in Las Vegas next week.

BBC: Toyota sneak previews self-drive car ahead of tech show

On the car safety side they have done a good job and they are really trying to bring a lot of the circuits that we run on up to the standards of the cars.

BBC: Your questions to Gil de Ferran

"The electricity used in building a car is about 20 percent of the cost of the structure, " said Marcilio Alves, an engineering professor at Brazil's premier University of Sao Paulo and one of the few independent researchers in the nation looking at car safety.

NPR: AP IMPACT: Cars Made In Brazil Are Deadly