Yet researchers from Stanford University say new treatments are often no better than existing ones, but are almost always more costly.

VOA: special.2009.08.14

We'll see later on, there are classes of computation that are inherently much more complex. We hate them, because they're costly, but they're sometimes inherently that way.

我们会稍后详细的讲讲这个,有许多内在更加复杂的种类的算法,我们痛恨它们，因为它们很耗时。

麻省理工公开课 - 计算机科学及编程导论课程节选

Governments establish regulators who set down rules for participants in financial markets and these rules may be perceived as onerous and costly to people in the financial community, but ultimately it's their salvation and it's what makes everything possible.

政府设立监管机构,监管机构为金融市场的参与者,制定法规条令,这些规则对金融界,有着极其严格的约束,但这些规则最终使得金融界运作良好,免遭灭顶之灾

耶鲁公开课 - 金融市场课程节选

Kerosene costs less than other forms of lighting, but it is still costly in poor countries.

VOA: special.2009.12.21

But when the telescope reached orbit, NASA scientists were shocked to discover that the costly mirror of the telescope had not been shaped correctly.

VOA: special.2009.09.30

But the changes that would be needed to carry astronauts are costly and untried.

VOA: special.2010.04.28

But TV receivers that use what is called a passive glasses system are costly.

VOA: special.2010.01.26

Rice hull ash is already available, but the product is relatively costly.

VOA: special.2009.12.01

But he points out that this system can make Islamic financing costly.

VOA: special.2009.12.11

But these vaccines are costly and available mainly in wealthy countries.

VOA: special.2009.12.16

But this process is more costly and labor intensive.

VOA: special.2009.04.07

But she went on feeling the soft, costly items.

VOA: special.2009.09.05

But Mr.Kirshner saves that can be costly.

VOA: special.2011.05.13

He said the coalition effort to defeat the Taliban and al-Qaida in Afghanistan will be costly and require great commitment, but that it will succeed.

VOA: standard.2009.12.09

"We are committed to helping more Americans to get the health care coverage they need, not through nationalizing the system with a costly government-run plan, but rather by supporting free-market incentives to help small business owners to make coverage more accessible and affordable,".

VOA: standard.2009.08.08