用c#创建JSON字符串

我是JSON格式的新手。我想创建以下使用c#， Json.net.

目标Json格式

{
   "tafsir":{
      "1_1":{
         "text":"Some text here"
      },
      "1_2":{
         "text":"Some text here2"
      }
   }
}

但是，得到输出:

"{'"tafsir'":{'"1_1'":'"Some text here'",'"1_2'":'"Some text here2'"}}

到目前为止，这并没有给创建所需的json字符串:

void Main()
{
    var result = new Translation();
    Dictionary<string, string> texts = new Dictionary<string, string>();
    texts.Add("1_1", "Some text here");
    texts.Add("1_2", "some text here2");
    result.tafsir = texts;
    var jsonStr = JsonConvert.SerializeObject(result);
}
public class Translation
{
    public Dictionary<string, string> tafsir { get; set; }
}
public class Trans
{
    public List<TransItem> Texts { get; set; }
}
public class TransItem
{
    public string Id { get; set; }
    public string Text { get; set; }
}

任何想法?

var obj = new {tafsir = new Dictionary<string, object>{
                          {"1_1", new{text="Some text here"}},
                          {"1_2", new{text="Some text here2"}}
                        }
              };
var json = JsonConvert.SerializeObject(obj,  Newtonsoft.Json.Formatting.Indented);