C提供自定义密钥

如何提供自定义键作为字典键?

当我执行代码时:我收到

    int[] Keys={5567,51522,35533};
    string[] values={"one","two","three"};
    var dic = values.ToDictionary(key=>Keys.ToArray());
    foreach (KeyValuePair<int, string> kv in dic)
    {
        Console.WriteLine("Key={0},value={1}", kv.Key, kv.Value);
    }

错误: can not convery KeyValuePair<int[],string> to KeyValuePair<int,string>