Decreases in barometric pressure two to three days before the visit also appeared to trigger headaches, but to a lesser extent.

VOA: special.2009.03.18

But these may not develop for two or three days after an overdose too late to prevent damage.

VOA: special.2009.07.08

But there were three astronauts. And the trip back to Earth would take four days.

VOA: special.2009.07.22

But Havens says that for those three muddy days at Woodstock, politics and activism took a back seat to peace, love and cheerfully dealing with the rain and mud.

VOA: standard.2009.08.15

Mr.Wen says the strongest impression he got from his three days in Pyongyang was that North Korea not only hopes to improve relations with the United States, but also hopes to have better ties with South Korea and Japan.

VOA: standard.2009.10.10