So you decide to drive your environmentally-friendly hydrogen fuel cell car instead—or rather, let your car drive you.

于是，你决定开着环保型的氢动力车去上班，或者更确切地说，让你的车载着你去上班。

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It's easy to let your car go a while without having it washed, and some artists make it even easier, by creating beautiful works of art using only a brush and the dust coating your neglected vehicle.

不用洗车也能让你的汽车体面上路，一些艺术家利用刷子和因为长期不使用而布满车体的灰尘创作出了漂亮的艺术作品。

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For instance, if a car driver slows down to let you cross the road, simply raising your hand in acknowledgement is enough to show that you appreciate the driver's consideration.

例如，如果一辆车的司机为了让你过马路而减速，你只要简单地举起你的手示意，就足以表明你对司机体贴的感谢。

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is it possible let one idea to change the world ? Lost your car?

一个想法可能改变世界,车坏了？

哈佛公开课 - 幸福课课程节选

There were demonstrations that allowed you to play music on headphones, test if products were genuine or counterfeit, or that let you replace your car keys or your house keys with just your phone.

WSJ: Is NFC Finally Becoming Mobile's Next Big Thing?

Friedman would have argued to do less and grow the monetary base at a steady rate that is the sum of what you want the long-term inflation rate to be and what you think the long-term growth of the economy will be and then, like the bumper car, take your hands off the wheel and let capitalism and markets do the rest.

FORBES: What Can Charlie Sheen and the Three Stooges Teach the Fed?

But if you need a family car and run short of cash, the trustee could let your spouse buy a Mercedes.

FORBES: ��You Must Act Now!��