B2 noun ˈlaɪf ɪkˌspek.tən.si
life expectancy
продолжительность жизни
Meaning
The average period that a person may expect to live; the length of time for which something is expected to last or to continue being effective.
Example
Life expectancy depends on healthcare quality.
Продолжительность жизни зависит от качества медицинского обслуживания.