如果别人对我说英语,但我听不懂,我应该用哪句英语回答呢?

尊敬,委婉的说法是:Pardon?I beg your pardon?随意,偏口语的说法是:What did you said just now Wait !I can't follow you ,can you just slow down 实在听不懂的话,可以谦虚地说:Well,I missed it again ,I think I...