手心手背都是肉

shǒuxīnshǒubèidōushìròu
  1. lit. both the palm and the back of the hand are made of flesh (idiom)
  2. fig. to both be of equal importance
  3. to value both equally

CEDICT

to not be able to choose between one or the other because both are of equal importance, value, or favour

Wiktionary

原指手心和手背的肉都長在同一隻手上。後比喻相對的雙方都同等重要。

重編國語辭典

相對的雙方都同等重要

維基詞典

Entry Composition

1 手心 shǒuxīn
  1. palm (of one's hand)
  2. control (extended meaning from having something in the palm of one's hand)
2 手背 shǒubèi back of the hand
3 都 dōu
  1. all; both; entirely
  2. (used for emphasis) even
  3. already
  4. (not) at all
=4 是 shì
  1. to be (followed by substantives only)
  2. correct; right; true
  3. (respectful acknowledgement of a command) very well
  4. (adverb for emphatic assertion)
=4 是 shì variant of 是 shì
5 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