为什么我的PowerShell多维数组被解释为一维数组?

我有以下代码:

function HideTemplates($File, $Templates)
{
  foreach ($Template in $Templates)
  {
    Write-Host $Template[0] $Template[1] $Template[2]
  }
}

HideTemplates "test.xml" @(("one", "two", "three"))
HideTemplates "test.xml" @(("four", "five", "six"), ("seven", "eight", "nine"))

它打印:

o n e
t w o
t h r
four five six
seven eight nine

我要打印:

one two three
four five six
seven eight nine

我的代码有问题吗?有没有一种方法可以强制PowerShell以不同的方式使用单个项遍历多维数组?