力战

力戰
lìzhàn
to fight with all one's might

CEDICT

to fight hard; to fight with all one's might

Wiktionary

奋力作战。

重編國語辭典

Entry Composition

1 力 lì
  1. power
  2. force
  3. strength
  4. ability
  5. strenuously
2 战 zhàn
  1. to fight
  2. fight
  3. war
  4. battle