Don't late me down .Time is money,中文意思?

don't is late next time,改错 Don 't let me down的意思 My teacher told me,“Don’t be late next time.” Don't is late next time.(改错） I don't think time is ＿ ＿ ＿money you don't matter let me down,b什么意思? don't bring me down! Don't let me down Don't look down on them ,will you 中文 意思 can't noboday hold me down中文意思 I don't think that there is anything you can do for me.中文意思, I am so down tonight and don' t know why . it is really late