And now, we are narrowing down and narrowing down to finding the perpetrators.

我们的调查将缩小到寻找罪魁祸首。

It didn't narrow things down at all.

它根本没有缩小范围。

That seems to narrow down the window.

这下似乎缩窄了调查范围。

But, we can narrow it down pretty easily.

但是我们可以很容易地把这个问题简单化。

Each piece of information narrows down your options.

每条信息都缩小了你的选择范围。

I've narrowed it down to these two.

我把范围缩小到了这两件。

Narrows it down from just anyone in London.

然后缩小范围，逐步排除嫌疑。

Oh, that really narrows it down.

亨利 这可是件大案子。

That narrows it down to about a million folks.

所以范围缩小到了一百万人左右吧。

There's actually an easy way to narrow things down.

其实有一个简单的方法来缩小范围。