USEFUL LIFE - The normal operating life in terms of utility to the owner.
Useful life is how long something will last in terms of utility.
How long before something breaks is its useful life.
The two female dancers are sitting down near each other.
Greuze asked us to watch a video.
"I completely knew you were going to do that," she said.
Critics never considered Winterson.
Two people are jumping for joy in their kitchen after winning the lottery.
The estimate presumes the larger coefficients represent less complete accounts of the effects of mortality.