Since no one strategy is enough, they argue, conservationists need a way to make explicit trade-offs.

Many business executives believe they must make trade-offs between the two.

Many people make such trade-offs, even when not engaging in relationships considered indecent.

Designers have to make trade-offs when they allocate the space on a chip.

"People will make trade-offs, but the one thing that won't be traded off is keeping the lights on at reasonable cost," he says.

"You must make trade-offs, George, and live with the consequences."

But the bill will make it much harder for Congress to make trade-offs.

It would give us the power to bargain and make trade-offs.

Although concerned about threats to privacy, respondents said they were willing to make trade-offs in the use of personal information.

In the end, some parts are probably going to be a judgement call and we have to make trade-offs.