在C＃中的多维列表

目前我使用一个列表来存储我的数据的一部分，它的这种格式可以正常使用：

At the moment I am using one list to store one part of my data, and it's working perfectly in this format:

Item
----------------
Joe Bloggs
George Forman
Peter Pan

现在，我想另一行添加到这个列表，为它像这样工作的：

Now, I would like to add another line to this list, for it to work like so:

NAME                    EMAIL
------------------------------------------------------
Joe Bloggs              joe@bloggs.com
George Forman           george@formangrills.co
Peter Pan               me@neverland.com

我已经使用此代码到一个列表中创建一个列表试过，这个代码是用另一种方法在foreach循环：

I've tried using this code to create a list within a list, and this code is used in another method in a foreach loop:

// Where List is instantiated
List<List<string>> list2d = new List<List<string>>

...

// Where DataGrid instance is given the list
dg.DataSource = list2d;
dg.DataBind();

...


// In another method, where all people add their names and emails, then are added
// to the two-dimensional list
foreach (People p in ppl.results) {
    list.Add(results.name);
    list.Add(results.email);
    list2d.Add(list);
}

当我运行它，我得到这个结果：

When I run this, I get this result:

Capacity Count 
----------------
16       16 
16       16 
16       16
...      ...

我在哪里去错在这里。我怎样才能得到我的代码所期望的输出，我使用的是现在？

Where am I going wrong here. How can I get the output I desire with the code I am using right now?