As a result, they have helped the financial system but not prevented the collapse of the economy.

"But will all those armies be able to prevent the final collapse on Earth?"

In parts of the city, only student rule seems to have prevented total collapse.

The base isolation system would likely prevent total collapse of the building.

What could have been done to prevent Stringer's collapse at the end of practice and his death early the following morning?

She was able to prevent complete collapse only by hanging on to the support rail.

In doing so, collectively we helped prevent what people were predicting: the total collapse of the world economy.

However it came too late to prevent financial collapse.

Then the muscles would be able to support the spine, preventing further collapse.

The first was to prevent collapse, then protect people from flying glass.