The performers, in costume and makeup, were walking up and down backstage.

演员们穿着戏服化着妆，在后台走来走去。

《柯林斯英汉双解大词典》

When they got back to the kitchen again, they found the Rat walking up and down, very restless.

当他们回到厨房时，他们发现水鼠兰特在那里走来走去，坐立不安。

youdao

And Satan answered the LORD, and said, from going to and fro in the earth, and from walking up and down in it.

撒但回答说，我从地上走来走去，往返而来。

youdao

I keep my mind active and coming to school three times a week, and walking up and down the steps, that kept me physically able."

VOA: special.2010.07.16

A big, heavy man was walking up and down in the hotel lobby.

VOA: special.2009.01.17

A big,heavy man was walking up and down in the hotel lobby.

VOA: special.2010.06.12

They seem to be walking up and down the streets, looking at the damage and the destruction.

CNN: STORY HIGHLIGHTS

"I've been walking up and down looking for the toads, " she said.

WSJ: Why Do the Toads Cross the Road? It's Mating Season in Philadelphia

Then I began walking up and down in front of her.

NEWYORKER: Miracle Polish