视频文本如下：

Welcome to English in a Minute, where we teach you about idioms in American English.

If you have heard American English, you have probably heard this:

It's a dime a dozen.

What does this phrase mean? Let's find out.

A: There's no need for you to pay $20 for that hair brush, it's too expensive.
B: Why not? I really need it.
A: The store down the street has them at a dime a dozen! Come on, I'll show you.

When you say something is "a dime a dozen," it means that there's a lot of it, it doesn't cost much, or that it isn't special.

It's a dime a dozen.

This is a common way of saying that something is so easy to get that it doesn't have much value.

And that's English in a Minute.