ㄧㄢˊˊㄧㄡˇㄒㄧㄣˋyán’éryǒuxìn

  1. 說話信用 一向言而有信因此大家愛戴」。

to speak and keep one's promise (idiom)​; as good as one's word
(expr. idiom.)​ tenir sa promesse