copyrightc版权copyrightn.版权；著作权v.获得版权adj.受版权保护的copyright royalty tribunal[法] 著作权权利金法庭copyright clearance center美国版权税计算中心copyright protection regime版权保护机制copyright protection period著作权有效期copyright protection system版权保护制度Copyright license agreement版权许可协议copyright infringement suit侵犯版权诉讼copyright licensing business版权贸易copyright infringement crime侵犯著作权罪Copyright protective devices版权保护手段