ㄧㄢˊyánㄔㄥˊchéngㄅㄨˋㄉㄞˋdài

  1. 寬恕嚴懲不貸嚴厲處罰絕不寬恕對於知法犯法理應嚴懲不貸。」姑息養奸網開三面

to punish severely (idiom)​