Adjective:

1. (of literary or musical or dramatic or artistic work) protected by copyright;

   "permission to publish copyright material"
   

copyrightn.版权；著作权v.获得版权adj.受版权保护的copyright bureau版权局Copyright policy版权政策copyright notice版权通知, 版权记录copyright agency版权代理机构copyright issues版权问题copyrightability版权性copyright holder著作权者copyright theory版权理论copyright office版权办公室copyright action版权诉讼

1. If the program is written by US federal government employees in the course of their employment, it is in the public domain, which means it is not copyrighted.
   如果这个程序是由美国联邦政府雇员在其雇佣期间内编写的，这个程序就处于公共领域，这意味着它不是版权所有的。