持续两年的 meaning in Chinese

lasting for two years

The two - year - old project is an extension of the open - source software movement , a community of enthusiasts who believe that relevant programs and data ? such as online maps ? should be freely accessible to the public for use , modification , and distribution
这项持续两年的工程是资源开放软件协议的扩展，一个热心团体认为相关的程序和数据（比如在线地图）应当免费被公众使用，修改和发布。