Cách sử dụng
The expression "open line" means a direct and unobstructed communication channel between two people or groups. It is usually used in the context of broadcasting or telecommunication, where the line is open for transmitting or receiving messages without any interruptions or barriers. For example, a radio or TV show may have an "open line" segment where listeners can call in and ask questions or share their opinions. In a business or organization, an "open line" policy might refer to having a transparent and accessible communication system between employees and management, where everyone can voice their concerns or suggestions freely.