一些创作者放弃版权并将作品捐赠给公共域。
Some creators give up their copyright and donate their work to the public domain.
在有效期内，版权都是生效的。除非你主动放弃。
Copyright has a set period of time for which it is valid and, unless you take some kind of action, you do not give up those rights.
公有领域是指任何个人或团体都不具有其所有权的知识财产。 版权到期的作品，或者创作者公开放弃所有权的作品自动进入公有领域。
Works are part of the public domain when their copyright expires or when the artist designates the work as such.
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