Dialects ,presenting varied cultures of different people,are used naturally in our daily life.The question whether to use dialects for communication in public is under heated discussion.As for it, my answer is No for the following reasons. First of all , dialects isn't suitable in public, for those growing up not in your hometown are likely to misunderstand what you expressed.In addition, Manderan, as our mothercountry language, has helped us solve the misunderstanding aroused from dialects.So,why not express your ideas using manderan? In the meanwhile, it provides a brillant opportunity to build up your manderan level through practises.Last but not least, taking communication for sake, we'd better not use dialects because communication is for exchanging information and sharing ideas.Consideration shoule be put into listeners' feeling. in the end, i strongly claim that dialects are not acceptable in public for both speaker's and listener's sake. Only when we understand what each other talked can this conversation make sense.