如何在c#中动态传递多个纬度和经度给google distance matrix api？

using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Threading.Tasks;

private static async Task<string> GetDistanceMatrixResponseAsync(string url)
{
    using (HttpClient client = new HttpClient())
    {
        HttpResponseMessage response = await client.GetAsync(url);
        response.EnsureSuccessStatusCode();
        return await response.Content.ReadAsStringAsync();
    }
}

private static string BuildDistanceMatrixUrl(string apiKey, List<string> origins, List<string> destinations)
{
    string url = "https://maps.googleapis.com/maps/api/distancematrix/json?";
    url += $"key={apiKey}";

    string originsString = string.Join("|", origins);
    url += $"&origins={Uri.EscapeDataString(originsString)}";

    string destinationsString = string.Join("|", destinations);
    url += $"&destinations={Uri.EscapeDataString(destinationsString)}";

    return url;
}

static async Task Main(string[] args)
{
    string apiKey = "YOUR_API_KEY";
    List<string> origins = new List<string> { "40.712776,-74.005974", "34.052235,-118.243683" };
    List<string> destinations = new List<string> { "37.774929,-122.419416", "51.5074,-0.1278" };

    string url = BuildDistanceMatrixUrl(apiKey, origins, destinations);
    string response = await GetDistanceMatrixResponseAsync(url);

    Console.WriteLine(response);
}