如何在c#中同时使用发送者和标签？

using System;

public class Program
{
    public delegate void MyDelegate(object sender, string label);

    public static void Main(string[] args)
    {
        MyDelegate myDelegate = new MyDelegate(MyMethod);
        myDelegate("Sender", "Label");
    }

    public static void MyMethod(object sender, string label)
    {
        Console.WriteLine("Sender: " + sender);
        Console.WriteLine("Label: " + label);
    }
}

Sender: Sender
Label: Label