Some new electric vehicles can travel almost three times as far as older ones did.

一些新型电动汽车的行驶里程几乎是老式汽车的三倍。

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These tests have shown that over the last 100 years, each new generation has become smarter than the older ones.

这些测试表明，在过去的100年里，每新一代人都比老一代更聪明。

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Students, especially older ones, might conduct research on a community need that could lead to action by a city council or state government.

学生，尤其是年长的学生，可能会对社区的一种需求进行研究，从而促使市议会或州政府采取行动。

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New arches form. Older ones fall away.

VOA: special.2009.04.15

And here is at least part of the reason why: Since late July the government has been paying for people to trade in older vehicles for newer ones with greater fuel economy.

VOA: special.2009.08.07

Britain is not alone over economic reform: many new countries, and even some older ones, agree.

ECONOMIST: Charlemagne

That includes launching as many as four new satellites a year to replace older ones.

FORBES: Europe Reinvents GPS

"But a lot of the new plants are replacing older ones, " says Brian Potskowski of BNEF.

CNN: Shale gas boom sparks EU coal revival