Environmentalists and local governments are increasingly concerned about the toxic hazard posed by old electronic devices and the cost of safely recycling those products.

环保人士和地方政府越来越关注于旧电子设备带来的有毒危害以及安全回收这些产品的成本。

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Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient but still carry great cost.

不断变化的建筑规范、人们逐渐发展的品味，以及维护这些精美的旧标志牌的高昂成本，让企业欣然接受了发光二极管。它们节约能源，但成本仍然很高。

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Changing building codes, evolving tastes, and the high cost of maintaining those wonderful old signs have businesses embracing LEDs, which are energy efficient, but still carry great cost.

变化的建筑法规，不断发展的品味，加上保养这些美丽而老旧的指示牌所需的高昂成本，都让商家们更欢迎 LED 灯，虽然 LED 灯节省能源，但是成本依然很高。

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Today,a fifty-year-old Barbie in good condition might cost more than twenty-seven thousand dollars.

VOA: special.2009.04.06

Fundamental advances in LED semiconductor technology, optics, and lighting system design now enable LED lights to break century old cost and performance barriers that have prevented consumers from realizing the savings businesses and municipalities already enjoy.

FORBES: LEDs: Lighting The Way To Major Energy Savings

What will hurt the housing market is not the alleged excess in prices we've been hearing so much about but the plain old higher cost of money.

FORBES: Fact and Comment

Simple, old-fashioned cost-cutting certainly played some part in many of the recent problems.

ECONOMIST: The land of disappointments