There followed a prolonged silence.

The economist anticipated a prolonged depression.

Prolong the agony.

Avoid prolonged use of the console. To help prevent eye strain, take a break of about 15 minutes during every hour of play.

The whole secret in prolonging his life lay in not shortening it.

Prolonging the discussion will bring us nowhere.

The prolonged drought did severe damage to crops.

The stock market is in a prolonged slump.

I must not stay to notice the strange fortunes of all the many other quasi-human worlds. I will mention only that in some, though civilization was destroyed in a succession of savage wars, the germ of recovery precariously survived. In one, the agonizing balance of the old and the new seemed to prolong itself indefinitely. In another, where science had advanced too far for the safety of an immature species, man accidentally blew up his planet and his race. In several, the dialectical process of history was broken short by invasion and conquest on the part of inhabitants of another planet. These and other disaster, to be described in due course, decimated the galactic population of worlds.

This huge war has been prolonged.