Last week,government scientists in the United States announced the discovery of two antibodies that raise hopes for an AIDS vaccine.

VOA: special.2010.07.14

Last week,the United States Department of Agriculture released its "household food security" report for two thousand eight.

VOA: special.2009.11.23

For example, she says a group of students who met in her classes now get together two times a week to talk and to bead.

VOA: special.2009.05.18

For example,people in Europe drink the most alcohol, about twenty-two drinks a week.

VOA: special.2009.09.08

Firefighters say they are making progress, but they warn that it might not be contained for another two week.

VOA: standard.2009.09.01

President Barack Obama this week reaffirmed U.S.support for a two-state solution, countering the Netanyahu government's position.

VOA: standard.2009.04.09

I came here to solve them." Mr.Obama spent two days in California in the past week, taking his campaign for his budget priorities directly to the people.

VOA: standard.2009.03.21

The Chancellor is also calling for a quick and thorough investigation of last week's NATO air strike on two fuel tankers, which had been hijacked by insurgents in Afghanistan's Kunduz province.

VOA: standard.2009.09.07