Every time you press a key on a piano, a felt damper is raised off the string, allowing it to sound; when you release the key, the damper falls back and stops the sound (unless the sustain pedal is down, letting everything ring).
Unless specifically sustained by a vote of Congress".
By 18 August, US diplomats on Robert Frasure's team tasked to mediate in the Bosnian War believed Operation Storm lent their diplomatic mission a chance to succeed, reflecting the opinion of US President Bill Clinton that the Serbs would not negotiate seriously unless they sustained major military defeats.
"But it cannot be sustained unless you empower from below".
The project could not be sustained unless Isis recruited influential supporters.
And unless there is sustained support from civic, environmental and political leaders, our opposition will be a hollow gesture".
Economists say they believe that the current recovery cannot be sustained unless businesses begin consistently restocking their shelves.
The revival is good for Russia and its new friends in the West, but it will not be sustained unless President Vladimir Putin makes further reforms.
The oil companies, relatively battle hardened, have given no sign that they they plan to pull people out of Indonesia unless there are sustained attacks against their installations.
Still, much of the America's economy's health depends on consumer spending, and the gains in manufacturing cannot be sustained unless that picks up.
