思之心痛

sīzhīxīntòng
a thought that causes heartache (idiom)

CEDICT

Entry Composition

1 思 sī
  1. to think
  2. to consider
2 之 zhī
  1. (possessive particle, literary equivalent of 的 de)
  2. him
  3. her
  4. it
3 心痛 xīntòng
  1. to feel distressed about sth
  2. heartache
  3. cardiac pain