RTB

例句：

1. 1. The company's main business is recording technology and business.
   该公司的主要业务是录音技术和商业。
2. 2. The RTB is a popular music channel in the city.
   RTB是一个在城市中受欢迎的音乐频道。
3. 3.The RTB broadcasts news and entertainment programs every day.
   RTB每天广播新闻和娱乐节目。