For a 15-year-old, the one-time investment rose from $12,864 to $24,310.

"Hopefully," Ms. Cohen said in an interview, "this is a one-time investment."

This is not a return on a one-time investment but a continuing expense; we have to keep spending that dollar to get the 8 cents.

The up-front cost for the purchase of a 20-year IRU can be a one-time investment.

It's analogous to taking out a second mortgage on a home to buy cheap fuel rather than pay for a one-time investment in new insulation.

"The bridge to Ellis Island would have been a one-time investment in providing access to one of our nation's most important historic sites," the Senator said.

A socially assistive robot would be a one-time investment and could be recycled once the person had recovered strength and mobility.

Obama not only estimated a one-time investment, but also stated a public safety cost.

"Future advances in agriculture require more than a one-time investment in research," a report prepared for the meeting says.

"They really view it as a one-time investment, like buying furniture - and they often buy furniture secondhand," Ms. Orr said.