czas trwania życia in inglese:

If you feed your dog properly, you can increase his lifespan.

The project's lifespan is estimated at about five years.

The ​average ​human lifespan in the ​developed ​countries has ​increased over the last hundred ​years.

what human beings can achieve with their lifespan

A qilin with a king too has no limit on its lifespan, but this illness alone admits of no remedy.