心头肉

心頭肉
xīntóuròu
the person one loves the most; one's most treasured possession

CEDICT

apple of someone's eye

Wiktionary

比喻珍爱的人或物。

重編國語辭典

Entry Composition

1 心头 xīntóu one's heart; one's mind
2 肉 ròu
  1. meat
  2. flesh
  3. pulp (of a fruit)
  4. (coll.) (of a fruit) squashy
  5. (of a person) flabby
  6. irresolute
  7. Kangxi radical 130