This proves too short for even the most highly industrialized countries to switch their economies to alternative energy sources.

But the Raiders were still buried and time proved too short.

But again, his tenure in the role proved short.

Many analysts cautioned that today's rally could prove very short.

Ford's tenure in the top spot may prove short.

Ms. Smith spends her energy finding ways to make permanent a life that proved too short.

The fact that the Germans were able to come and go in the air without the least opposition was proving little short of disastrous.

The new Prime Minister's grace period is likely to prove short.

He knew there would be trouble from the shore, and feared that time would prove too short to complete his purpose.

"Do what you must, but hold them for your life, or that will prove short."