Three years ago, Saudi Arabia and others decided to do nothing, even as prices dropped swiftly from more than $100 a barrel.
The Greek defence minister, Panos Kammenos, said that the plane dropped swiftly to 15,000 feet and made "sudden swerves" before dropping off radars.
After their current album entered the charts at No 1 both here and in the US, it dropped swiftly, spending only three weeks in the UK Top 10.
On the night of 8 October, 14 members of the US Navy Seals Team Six dropped swiftly from two special forces helicopters to mount a sudden, daring rescue mission.
For example, between the fall of 1940 and the spring of 1942, the period immediately prior to and after the entry of the United States into World War II, U.S. stock prices dropped swiftly despite a continued revival of economic activity.
Shares of companies that sell hormone replacement drugs dropped swiftly on the news: Wyeth's stock fell 24.3% to $37.30; Barr Labs, which makes several hormone replacement drugs, lost 9% to $54.60; and Noven, a company that makes hormone replacement patches, shed more than 27% to $14.97.
Candidates like Herman Cain and Newt Gingrich led in 2012 and then dropped swiftly, because they did not have the billion-dollar brand Trump has.
At first you may think that this is crazy, but if a corner is worn out, the value of your card can drop swiftly from rating a 10 to rating a 3.
Potent pass defense begins with the pass rush of the defensive linemen, with the linebackers dropping back swiftly and effectively in coverage and the secondary clicking, all in unison.
After five minutes, the odds of survival drop swiftly.
