张博文思敏捷,（如果）各地来求大作的人,不打草稿,在客人面前挥毫泼墨,很快就好了.所以一时间声名很大.
Zhangbo was good at poetry and article writting.Once someone came to ask an article or poetry,he never made a draft,and finished at front of guest in a short time.This was the reason,why he was famous then.