Availability has improved in developing countries, but still remains limited compared to industrialized nations.

VOA: special.2010.04.12

For example, how cancer diagnosis has improved, what are some of the causes of cancer in the environment around us and how can we protect ourselves from it, and we'll talk about treatments for it as well.

例如癌症的诊断手段是如何进步的,我们周围环境中有哪些致癌因素,以及我们如何保护自己免受其害,我们也会讨论到癌症的治疗手段

耶鲁公开课 - 生物医学工程探索课程节选

Do you think your English has improved a lot since you came to London?

自从你来伦敦后，你觉得你的英语提高了吗？

学习英语的理由 - SpeakingMax英语口语达人

Credit has improved in some cases since the financial crisis worsened in September.

VOA: special.2009.01.16

The National Park Service has improved more than 1100 kilometers of trails.

VOA: special.2009.01.07

School attendance has improved in many areas.

VOA: special.2010.05.20

Although security in Iraq has improved during this time, apparently the lives of most of these homeless people have not.

VOA: standard.2009.09.20

They had been harassed,she says, by Muslim youths, but since a volunteer group was formed, security has improved.

VOA: standard.2009.08.31

"I think the situation has improved not just from the arms supply, I think from the people's participation in the area that is the important factor,".

VOA: standard.2009.08.31

If we do not react, the political signal that we give would be that our concerns have decreased or that the situation has improved which is not the case."

VOA: standard.2009.11.20

"He has improved information-sharing, increased intelligence support to our troops in Afghanistan and Iraq, upheld civil liberties, and he played a key role in our effort to update and reorient our intelligence community to meet the threats of our time."

VOA: standard.2010.06.05

Having a disability, people still look at you weird, but it's like, 'Alright.He's got a disability, but it's kind of okay now.'" Life for people with disabilities has improved greatly since Bobbi Wailes was stricken with polio as a 12-year-old, before the vaccine became available in the 1950s.

VOA: standard.2010.07.27

His team has found that even more complex movements can be performed by TMR patients with improved kinds of prosthetic devices.

VOA: special.2009.03.10

The Rotary Eye Institute of Navsari has restored or improved the eyesight of thousands of patients.

VOA: special.2009.03.30

Though school enrollment has increased in recent years, experts say improved access to education must go hand-in-hand with improved quality.

VOA: standard.2010.05.19

The president says the U.S.intelligence community has vastly improved since the terrorist attacks on New York and the Pentagon in 2001.

VOA: standard.2010.06.05

The survey released Monday indicates trade finance has since July improved in most APEC economies as more cash has become available.

VOA: standard.2009.11.09

UNESCO's recognition last year of batik as part of Indonesia's intangible cultural heritage has also improved its allure.

VOA: standard.2010.04.14

Thailand's royal palace has been issuing daily updates on the king's health that say it has gradually improved.

VOA: standard.2009.10.15

"What I have heard representatives of Europe and China say is that the target the United States has tabled can be improved upon.

VOA: standard.2009.12.09

This trip could give both sides a chance just to see how much has actually improved.

VOA: standard.2009.10.23

"What I have heard representatives of both Europe and the United States say is that the target that China has tabled can be improved upon,"

VOA: standard.2009.12.09

President Dmitri Medvedev has said Russia is seeking improved cooperation with the United States.

VOA: standard.2009.04.02

In the last few years Ankara has dramatically improved relations with the region.

VOA: standard.2010.06.17

"The security situation has not improved in the country over recent weeks,".

VOA: standard.2009.09.10

The Buchanan Renewable investment has already improved roads, bridges,and ports in Liberia.

VOA: standard.2009.09.13

"It seems to me that we should be able to take what has been a tragedy and turn it into an opportunity to create a situation where lives in Gaza are actually directly improved."

VOA: standard.2010.06.10

On Thursday,the number two U.S.commander in Iraq, Lieutenant General Charles Jacoby, said the improved cooperation between Prime Minister Maliki and President Barzani has led to reduced tension between the Iraqi Army and the Kurdish Peshmerga force.

VOA: standard.2009.12.12

He also offered some tough talk. "I emphasized that this has to be a point in time in which we begin to write a new chapter based on improved governance, a much more serious effort to eradicate corruption, joint efforts to accelerate the training of Afghan security forces so that the Afghan people can provide for their own security,".

VOA: standard.2009.11.02