series street-lighting system

例句：

1. 1. The movie stars a series of actors.
   这部电影由一系列演员主演。
2. 2. We have a series of tasks to complete.
   我们有一系列任务需要完成。
3. 3. This is a series of steps that you need to follow.
   这是一系列步骤，你需要按照顺序进行。