Going up and down stairs will be good exercise for me.

上上下下爬楼梯对我会是的锻炼。

youdao

We hope you enjoy making dinosaurs and running up and down stairs!

我们希望你喜欢使恐龙和上下楼梯上！

youdao

What with going from one department to another and up and down stairs, I've been fun off my feet today.

我今天从一个部门到另一个部门，又是上楼，又是下楼简直忙得脚不沾地。

youdao

You need to walk down the stairs and then up the stairs.

要被迫上下楼。

哈佛公开课 - 幸福课课程节选

She went in and out of rooms, up and down stairs.

NEWYORKER: Ziggurat

Caesar swings through the house, leaping up and down stairs and throwing himself in and out of the attic, but he sits quietly at the dinner table, too.

NEWYORKER: Noble Creatures

He didn't stop to take a breath as he led me furiously from room to room, up and down stairs, through the ruins of what had been a gym.

NPR: Adventures Along the Caspian Pipeline