Suppose you are a naive investor and you say, okay I'm going to invest in companies' paper, which is their promise to pay --their IOU.

假如你是一个菜鸟投资者,想投资于这些公司的债券,债券就是他们的偿还凭证或者说欠条

耶鲁公开课 - 金融市场课程节选

I like books. I'm old-fashioned. I like the paper copy, you know.

我喜欢书籍。我是个守旧的人。我喜欢纸质的书。

美国的出版市场 - SpeakingMax英语口语达人

These would have been inscriptions either on pottery, which the earliest ones are,or on stone, but otherwise I'm sure there was writing on perishable material-wooden plaques, probably not yet paper, but these would have been destroyed.

有些是刻在陶器上的铭文,最早期的时候,是刻在石头上的,但另外,我能肯定,有些是写在易腐蚀的材质,比如木头,或者瓷片上的,当时应该还没有出现纸,但是这些都被毁坏了

耶鲁公开课 - 古希腊历史简介课程节选