"The one-time cost of our system which consists of a small solar panel, a little motorcycle-sized battery and a couple of LED lamps, is less than one hundred dollars,"

VOA: standard.2009.12.13

It only helps them to bring down the cost of health care, government has to operate the system more efficiently than the market does.

它只能,降低医疗的费用，政府必须,比市场更加有效地运作。

斯坦福公开课 - 经济学课程节选

President Obama is fighting hard timing is now,". for his top domestic priority, an overhaul of the current health care system that would cost at least $1 trillion, a priority he asserts that can be achieved without adding to the federal budget deficit.

VOA: standard.2009.07.21

"The scheme to radically change the sources and the cost of American energy, through a system known as 'cap and trade' may be well intentioned, but it will cost us dearly in jobs and income, and it stands no chance of achieving its objective of a cooler earth,".

VOA: standard.2009.05.30