copyright standard的用法和样例：
例句
- Since there is no common DRM standard, songs purchased for one type of music player may not work on another.
由于现在并无一个共同的数字版权管理标准，所以为这种音乐播放器购买的歌曲可能在另一种播放器上就听不了。 - The provision of standard forms of various copyright licencing contracts shall be the responsibility of the National Copyright Administration.
国家版权局负责提供各类著作权许可使用合同的标准样式。
