预期寿命 /yùqī shòumìng/ angolul

life expectancy [life expectancies]▼(the amount of time one is expected to live)
noun
[UK: ˈlaɪ.fɪks.ˌpek.tən.sɪ] [US: ˈlaɪ.fɪks.ˌpek.tən.sɪ]