However, the literature of Ningbo has more resource, such as different kinds of intramural materials which include archives, personal letters, diaries, writing collections and so on.

不过，宁波地方文献的“生产”却不限于此，其他内部性的文献包括各种公私机构留下的档案，以及各相关者的函稿及日记、文集等。

youdao

The art may appear on any writing surface even the rocky walls of cliffs but it is especially common on letters, scrolls, works of literature and fan coverings.

UNESCO: Culture

The race has taken on the tone of a real campaign as each of the candidates has sent letters and literature to all 165 RNC members.

CNN: Race To Succeed Barbour Heats Up