丁是丁,卯是卯

dīng shì dīng , mǎo shì mǎo

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Definitions

  1. 1. lit. to keep ding (the fourth heavenly stem) distinct from mao (the fourth earthly branch) (idiom)
  2. 2. fig. meticulous
  3. 3. conscientious
  4. 4. unambiguous