Cluster headaches occur in cycles: sufferers can experience several headaches a day for weeks or even months on end.

VOA: standard.2009.12.17

Colville calls this is an almost unimaginable situation for children and other civilians to have to live through for even one day, let alone months on end.

VOA: standard.2009.10.25

Among other things, it calls on the secretary-general to appoint a special representative to lead efforts to end sexual violence.

VOA: special.2009.10.24

Lee sent Stonewall Jackson, with twenty-four thousand men, on a quick march around the western end of Pope's lines.

VOA: special.2009.09.24

The Republican governor proposes to end collective bargaining rights for most public employees except on the issue of wages.

VOA: special.2011.02.25

Behind her,in the little room over the porch, a tiny clock ticked loudly on its shelf near the end of the bed.

VOA: special.2010.05.15

At the end of the day, musicians on both sides would play to raise the spirits of soldiers.

VOA: special.2010.07.25

They plan to continue working on it until the end of October when it will be taken apart.

VOA: special.2010.08.13

But instead of going to prison, she was permitted to seek treatment to end her dependence on drugs.

VOA: special.2010.02.28

They got back on the train and keep going until they reached the end of the line.

VOA: special.2009.05.31

Delegates from around the world have agreed on a new plan to end the worst kinds of child labor by two thousand sixteen.

VOA: special.2010.05.17

But some environmental groups say it should be made permanent to end the nation's dependence on oil.

VOA: special.2010.06.19

By the end of its first week on the market it had sold two million copies.

VOA: special.2009.10.09

In eighteen sixty-one, the American Civil War put an end to steamboat traffic on the Mississippi.

VOA: special.2010.03.21