public domain noun
Learner's definition of PUBLIC DOMAIN
the public domain
1
: the state of something that is not owned by a particular person or company and is available for anyone to use公有领域；公有产业；不受版权保护 2
US : land that is owned by the government国有土地
— public domain
adjective -
public domain software不受版权保护的软件
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The software became public domain.该软件已经不受版权保护。
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The forests are public domain.这些森林是国有土地。