You can check the list of duty-free articles.

在一览表上列出的商品的卖价。

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You can write free articles and see if a newsletter will publish it.

你可以写文章，免费看一份通讯将出版。

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Ezine? Just click on the star to snap up one or more of her free articles.

只需按一下星抢购的一个或多个她免费的文章。

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Like the one employed by the Times, it will involve metered access, with each computer allowed 20 free articles per month before hitting a gate.

FORBES: The Washington Post Is Building a Paywall (With a Huge Hole)

Beyond the couple of free home page articles and the 100 free top articles, non-subscribers will only see the first 100 words or so of each article.

WSJ: Encyclopaedia Britannica Now Fits Into an App

The "EPUB export feature" makes it easier for people to read free encyclopedia articles on their mobile phones, e-readers or tablets when they don't have a connection, Wikipedia said in a blog post on Monday.

CNN: How to turn Wikipedia into an e-book