gǔ / dài / wén / zhāng / zhōng / cháng / yòng / diǎn / gù / lái / yòng / shì / shǐ / biǎo / dá / gèng / jiā / hán / xù古代文章中常用典故来用事,使表达更加含蓄。Ancient writings often used allusions to make their expression more subtle.