居功至伟

居功至偉
jūgōngzhìwěi
see 厥功至伟 juégōngzhìwěi

CEDICT

to have made significant contributions to a project or cause

Wiktionary

Entry Composition

1 居功 jūgōng to claim credit for oneself
2 至 zhì
  1. to arrive
  2. most
  3. to
  4. until
3 伟 wěi
  1. big
  2. large
  3. great