YOU SAID:

I ran down eleven flights today with a pen in my hand.

INTO JAPANESE

私はその後、本を手に持って散歩に出かけた。

BACK INTO ENGLISH

I went out for a walk with a book in my hand after that.

INTO JAPANESE

私はその後、本を手に持って散歩に出かけた。

BACK INTO ENGLISH

I went out for a walk with a book in my hand after that.