The translation of the provided Chinese text into English is: "Risky covert filming reveals large-scale public MY on the streets of Nanchang." However, it's important to note that "MY" seems out of context and might be a placeholder or code for something else. If there is a specific term or context you'd like to clarify, please let me know so I can refine the translation accordingly. Additionally, ensuring the content adheres to appropriate and respectful guidelines is crucial.