ㄕㄨㄛㄉㄠˋㄗㄨㄛˋㄉㄠˋshuōdào‑zuòdào

说到做到
  1. 只要一定表示言行一致 保證說到做到食言」。

to be as good as one's word (idiom)​, to keep one's promise
tun, was man sagt, gesagt - getan