The vaccine has already proven effective at preventing the disease in half of those vaccinated which is more than ever before.
VOA: special.2009.12.22
Instead,northern pines and hardwood trees will rise on the higher half of the land, which is called Upland.
VOA: special.2009.10.06
The Chesapeake Bay sometimes flows over the wetlands, which cover half the land.
VOA: special.2009.10.06
APEC is made up of 21 Pacific Rim economies, which account for about half of world trade.
VOA: standard.2009.11.11
U.S.oil companies account for half of the daily production in Angola, which now rivals Nigeria for the title of Africa's largest producer of oil.
VOA: standard.2009.08.10
which are performed in nearly half of all deliveries in some New York hospitals.
VOA: standard.2010.06.23
Seven-and-a-half million people watched the TV debate, which focused on Britain's economy.
VOA: standard.2010.04.30
U.N.High Commissioner for Refugees Antonio Guterres hailed the document, noting that Africa, which has roughly half the world's displaced people, is the first region to agree on rules for protecting them.
VOA: standard.2009.10.23
"Businessmen on the Egyptian side who are able to have an exclusive market of a million and a half people to which they can market products for a much higher price."
VOA: standard.2010.06.17
The Spanish picked up the pressure in the second half, but were unable to find their way through the U.S.defense, which was bolstered by the return of captain Carlos Bocanegra, who was missing from first round matches with a hamstring injury.
VOA: standard.2009.06.24
Final results from Mauritania's electoral commission show former General Mohamed Ould Abdel Aziz winning more than half of the ballots cast making him president without a second round of voting in which his main political opponents had vowed to unite against him.
VOA: standard.2009.07.19
应用推荐