Noun + 上
上 (shàng) as a locative word means "on," "above," or "in" and indicates the surface or medium where something exists or occurs. It often follows a noun to form a location phrase, such as 杂志上 (in a magazine) or 桌子上 (on the table).
桌子上放着一杯咖啡和一本书。
Zhuōzi shàng fàngzhe yī bēi kāfēi hé yī běn shū.
There is a cup of coffee and a book on the table.
这篇文章发表在一本著名的杂志上。
Zhè piān wénzhāng fābiǎo zài yī běn zhùmíng de zázhì shàng.
This article was published in a famous magazine.
网上有很多免费的学习资源。
Wǎng shàng yǒu hěn duō miǎnfèi de xuéxí zīyuán.
There are many free learning resources online.