Because they cost less.

因为它们的成本更低。

youdao

youdao

In a way that means they have to cost less than fossil fuels—certainly when you're filling up your car.

在某种程度上，这意味着它们的成本比化石燃料要低——当然是当你给汽车加油的时候。

youdao

Engineers said it would cost less to complete the canal De Lesseps had started twenty years earlier in Panama.

VOA: special.2010.08.12

So, you could buy apartment buildings for way less than it would cost to replace them.

所以，你可以买公寓，这比你自己花钱重建房屋,要省钱。

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but with, you know, less cost, and probably even quality is not that high.

却只要更少的成本，虽然产品的质量可能不怎么高。

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After 2005, garment quotas will be abolished, making imports into the region cost less.

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It would be one part that would cost less and perform at a higher level.

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By contrast, the bar-codes printed on supermarket products cost less than half a cent each.

ECONOMIST: Tech.view