Without the chance of big financial rewards, no one would invest billions in risky drug discovery.

Maryland has invested billions or dollars to build a public road system.

China is investing billions of dollars in its space programme.

Companies are investing billions of dollars in improving coverage and quality.

Yet to remain competitive, they must invest billions in new technology that may not pay off for years.

He is expected to visit an industrial zone where many multinational companies have invested billions.

And both are calling for the federal government to invest billions of dollars in school construction.

In practice, it means that the rivals have to invest billions of dollars before they can compete.

Nor should we invest billions in research into fusion energy.

The company has invested billions of dollars since the mid-1980's to develop advanced chips.