This train will get you there in half the time.

The next quarter billion will be added in half that time.

The Arctic is warming twice as fast as the global average.

So, we disobeyed. We flew much higher, and double the speed.

Double the dose.

Double the dose.

The meeting is held twice a month.

The committee meets twice a month.

You are twice as strong as I.

You are twice as strong as I.

I've been to Paris twice.

I've been to Paris twice.

I'm twice your age.

He has been to England twice.

Tom puts gas in his car twice a week.

He is twice as old as she is.

He is twice as old as she is.

I was in Kyoto twice.

You are twice as strong as I am.

You are twice as strong as I am.

You are twice as strong as me.

You are twice as strong as me.

You're twice as strong as me.

Tom is twice as heavy as Mary is.

Tom is twice as tall as Mary.

Tom is twice Mary's age.

You're twice as strong as me.

Tom looks half his age.

I've been to Boston twice.

I've been to Boston two times.

Mars is half the size of Earth.

You're twice as heavy as I am.

You're twice as heavy as I am.

I'm twice as heavy as you are.

You're twice as old as I am.

You're twice as old as I am.

You're twice as heavy as me.

You're twice as heavy as me.

I'm twice as old as you are.

I'm twice as old as you are.

You're twice as old as Tom.

You're twice as old as Tom.

You're twice as old as me.

You're twice as old as me.

I'm twice as old as Tom.