一 + 篇 + 文章
文章 (wénzhāng) refers to a written article, essay, or piece of writing. It is one of the most common words for any written composition, whether in print or online. You can use it with a measure word like 篇, as in 一篇文章 (one article).
我昨天看了一篇关于健康饮食的文章。
Wǒ zuótiān kàn le yī piān guānyú jiànkāng yǐnshí de wénzhāng.
I read an article about healthy eating yesterday.
你写的文章我都读了,写得真好。
Nǐ xiě de wénzhāng wǒ dōu dú le, xiě de zhēn hǎo.
I've read all the articles you wrote, and they're really good.
这篇文章太长了,我还没看完。
Zhè piān wénzhāng tài cháng le, wǒ hái méi kàn wán.
This article is too long; I haven't finished reading it yet.