百年大計

百年大计
bǎinián
a project of vital and lasting importance

CEDICT

  1. (figurative) matter of paramount importance; vital long-term project
  2. matter of paramount importance; vital long-term project

Wiktionary

影響深遠計畫措施

重編國語辭典

影響深遠計畫措施

維基詞典

Entry Composition