长效

長效
chángxiào
to be effective over an extended period

CEDICT

Entry Composition

1 长 cháng
  1. long
  2. (bound form) length
  3. (bound form) strong point; forte
  4. (bound form) to be good at
  5. (literary) surplus; spare (Taiwan pr. zhàng)
=2 效 xiào variant of 效 xiào
=2 效 xiào to imitate (variant of 效 xiào)
=2 效 xiào variant of 效 xiào
=2 效 xiào
  1. effect
  2. efficacy
  3. to imitate