一生一世

yīshēngyīshì
a whole lifetime (idiom); all my life

CEDICT

lifetime; all of one's life

Wiktionary

一辈子。

重編國語辭典

Entry Composition

1 一生 yīshēng all one's life; throughout one's life
2 一世 yīshì
  1. generation
  2. period of 30 years
  3. one's whole lifetime
  4. lifelong
  5. age
  6. era
  7. times
  8. the whole world
  9. the First (of numbered European kings)