所以很多都是口口相传。

So, a lot of it has been word of mouth.

这是一段祖祖辈辈、口口相传的历史。

It is an oral history, passed on from generation to generation.

不仅如此，老顾客很有可能通过口口相传为你带来新客户，这种可能性远远大于那些甚至还没有消费过的人。

Not only that, but an old customer is far more likely to bring you new people via word of mouth than someone who isn't even a customer yet.