PBS

例句：

1. 1. The program was produced by PBS.
   这个节目是由PBS制作的。
2. 2.I watched the PBS documentary about the history of the Civil War.
   我观看了关于内战历史的PBS纪录片。
3. 3. Many people watch PBS for educational purposes.
   许多人观看PBS是为了教育目的。