有力

yǒulì
  1. powerful
  2. forceful
  3. vigorous

CEDICT

Entry Composition

1 有 yǒu
  1. to have; there is
  2. (bound form) having; with; -ful; -ed; -al (as in 有意 yǒuyì intentional)
2 力 lì
  1. power
  2. force
  3. strength
  4. ability
  5. strenuously