Translation of "let sb down" - English-Mandarin Chinese dictionary

let sb down

phrasal verb with let /let/ verb (present tense letting, past tense and past participle let)

to disappoint someone by failing to do what you agreed to do or were expected to do

You will be there tomorrow - you won't let me down, will you? 明天你会去那里的——你不会让我失望,对吧?
When I was sent to prison, I really felt I had let my parents down. 我入狱的时候真觉得对不起我的父母。

(Translation of “let sb down” from the Cambridge English-Chinese (Simplified) Dictionary © Cambridge University Press)