+0 = 4

ㄆㄨ

ㄆㄨpū
  1. 說文解字》:。」
to tap, to knock lightly, old variant of 撲|扑[pu1]
Radikal Nr. 66 = schlagen, Peitsche (Variante: 攵)​ (Sprachw)​
toquer, radical 66