This is a very common idiom, actually.

实际上，是一个很常见的俗语。

Some English idioms often baffle English learners.

有英语成语经常使英语学习困惑。

And you should be using some idioms.

而且你应该使用一习语。

What is this? Can you guess this idiom?

个是什么？你能猜出个成语吗？

See if you can use that idiom yourself.

看看你自己能不能使用那个习语。

But this is an idiom and it's metaphorical.

但是一个习语，也是一个比喻。

So all of those are great, really, really good idioms.

所以所有都是很棒的表达，非常好的习语。

Today we're going to talk about four American idioms.

今天我们要讨论四个美国习语。

But we also have another idiom.

但我们还有另一个习语。

We say this idiom several ways.

个习语有几种说法。

This is a UK idiom much more, right? A British one.

是一个英国习语，对吧？英国的。

You heard more idioms like this here.

在个对话中你听了更多类似的短语。

Now, let's hear how to use this idiom in a dialogue.

现在我们来听一听如何在对话中使用个习语。

Do you remember the idiom from the title of the last section?

你记得在上一个单元的标题里的习语吗？

That word comes from Shakespeare's idiom " as dead as a doornail."

个词来自莎士比亚的俚语“as dead as a doornail”。

Again, these are nice idioms for the topic.

再次，是适合个话题的好习语。

And that is where we get our idiom.

就是我们习语的来源。

Back to square one, I guess… In this dialogue, you heard several idioms.

我觉得可能要从头再来吧… … 在个对话里，你听了几个习语。

Along similar lines. This is an idiom that means almost the same, comparable.

沿着类似的路线。是一个成语，意思是几乎相同，可以比较。

To understand this idiom, we must understand a bit about horse's teeth.

我们必须稍微了解一下马齿，以便更好理解个习语。