一分一毫 yī fēn yī háo

DEFINITIONS

  1. a tiny bit (idiom)
  2. an iota

CHARACTERS

一 yī
HSK 1
one; a, an; alone
分 fēn
HSK 1
divide; small unit of time etc.
一 yī
HSK 1
one; a, an; alone
毫 háo
HSK 5
fine hair; measure of length