So this is a little bit of backdrop.

So that's the backdrop.

This is a picture of Titan, backlit by the Sun, with the rings as a beautiful backdrop.

A woodcock uses feathers to blend in perfectly with its forest backdrop.

Now, thinking about that as a backdrop, we now forward to May 1915.

And all of this is played out against the backdrop of transient pack ice that moves with wind and tide.

I've done this before.

This has happened before.

We've seen this before.

Right before this dialogue,

You've done this before?

What I used was a big white sweep, a paper backdrop, but you could also use a white wall.

You say, Oh yeah. I've seen this before. I've seen this author before.

This is a before and after. So that was before.

Have you seen this before?

We've talked about this before.

And we've seen this before.

We also practiced this before.

You've seen this example before.

And we've done this before.

This was our laboratory before.

We've seen this movie before.

This was called 'Home' before.

I've never seen this before.

We already learned this before.

This is before the assignments.

We saw this show before.

We've seen this before, right?

We've gone through this before.

I've never done this before.

Have you done this before?

And four months before this happened, four months before Myesha died,

She'd never been this frightened before.

He did this before my face.

I remember hearing this tune before.

Take this medicine before each meal.

I have read this book before.

I remember reading this novel before.

I have read this book before.

I've never been this happy before.

I've never been this happy before.

I have read this book before.

Actually, I've seen this movie before.

So before I play this video,

We've seen examples like this before.