narrowcasting

例句：

1. 1. The company has been implementing a new narrowcasting system to improve its delivery speed.
   该公司一直在实施一个新的窄播系统以提高其交付速度。
2. 2.The narrowcasting technology allows us to deliver content to specific audiences more efficiently.
   窄播技术使我们能够更有效地将内容传递给特定的受众群体。
3. 3. The narrowcasting platform provides a secure and reliable way to broadcast audio and video content.
   窄播平台提供了一种安全和可靠的方式来广播音频和视频内容。