After Xiaomi's mobile phone sends a text message, the message box displays the delivery. Is this delivery displayed after others have seen it, or is it a display of successful delivery?

Of course, it means delivery ~! That is, it has been sent to someone else's mobile phone, but you don't know if others have read it, because to achieve this step, you need a feedback action, and you need to feed back the information that others have read this information to you. Obviously, this is just a simple sending action ~! I hope I can help you ~