心血

xīnxuè
  1. heart's blood
  2. expenditure (for some project)
  3. meticulous care

CEDICT

Entry Composition

1 心 xīn
  1. heart
  2. mind
  3. intention
  4. center
  5. core

classifiers: 顆, 個
2 血 xuè
  1. blood
  2. colloquial pr. xiě

classifiers: 滴, 片