utrzymać przy życiu in inglese:

Only two of the planets could sustain life.

A cup of coffee isn’t enough to sustain you until lunchtime.

The company sustained damages in excess of its insurance coverage.

sustainable sources

to make something continue to exist or happen for a period of time. He was incapable of sustaining close relationships with women.

The monument has sustained certain damage.

The soil in this part of the world is not rich enough to sustain a large population.

The team may not be able to sustain this level of performance. The money he received was hardly enough to sustain a wife and five children.

‘this thought had sustained him throughout the years’

If you want to speak fluently you must constantly sustain the contact with language.

while two sustained less serious wound

"A resident sustained bruising to his arms following restraint."

A starting population of 150 to 180 would best sustain itself at the same rate over six to eight generations.

Sustain means to support something or keep it going. If you get hungry in the mid-afternoon, you might try snacking to sustain your energy through dinner.

Time and space are one body, mind and things sustain each other.