In other words, after an author's "copy right" expired, the work matriculated to a "public domain" — a novel and compelling notion that didn't exist prior to 1774.

换句话说，在作者的“版权”过期之后，作品就进入了“公共领域”——这是1774年之前所没有的一个新的引人注意的概念。

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Domain names are sold, expired, snatched, and stolen on a regular basis, so a date is also included in the URI.

域名可能出售、过期、被抢或者盗窃，因此uri中还要包含日期。

youdao

Works can also fall into the public domain if their copyright has expired.

如果作品的版权已经过期，也会落入公共域。

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The website hosting firm said the domain name had expired in July 2012 because its fees had not been renewed.

BBC: Positively Plymouth marketing brand ditched

The Club Penguin domain, according to WHOIS information for the site, expired one week ago on June 13.

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