ReadWriteQuiz
Chinese dictionary
slnot to be repeated; not to be taken as a precedent; just this once; not serve as a precedent
我保证下不为例。
I promise not to do it again.
只此一次,下不为例。
Only this time and no more.
今天特殊,下不为例。
Today is a special case, and I won't do it again.