如何将字典<string,string>转换为LINQ中的属性字符串？

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        Dictionary<string, string> dict = new Dictionary<string, string>();
        dict.Add("Name", "John");
        dict.Add("Age", "30");
        dict.Add("Country", "USA");

        string propertyString = string.Join(", ", dict.Select(kv => $"{{ {kv.Key}: {kv.Value} }}"));
        Console.WriteLine(propertyString);
    }
}

{ Name: John }, { Age: 30 }, { Country: USA }