毫釐不爽 háo lí bù shuǎng

DEFINITIONS

  1. not to deviate an iota (idiom)
  2. to be extremely accurate

CHARACTERS

毫 háo
HSK 5
fine hair; measure of length
釐 lí manage, control; thousandth part of tael
不 bù
HSK 1
no, not; un-; negative prefix
爽 shuǎng
HSK 6
happy, cheerful; refreshing