不惜

bùxī
  1. not stint
  2. not spare
  3. not hesitate (to do sth)
  4. not scruple (to do sth)

CEDICT

Entry Composition

1 不 bù
  1. no; not so
  2. (bound form) not; un-
2 惜 xī
  1. to cherish
  2. to begrudge
  3. to pity
  4. Taiwan pr. xí