"Mr. Bullen gets up and begins to walk up and down again.

布伦先生起床，又开始来回走动。

youdao

Walk up and down the hotel halls.

在宾馆大厅里来回的走走。

youdao

Walk up and down the stairs, instead of taking the lift.

—用步行上下楼梯来取代搭乘电梯。

youdao

There,on Easter morning, people walk up and down Fifth Avenue after church services to enjoy the spring weather.

VOA: special.2009.12.20

I think he lives here. I've seen him walk up and down the street a few times.

我想他住在这儿。我在路上见过他几次。

演艺人居住的街区 - SpeakingMax英语口语达人

So what would I want to do? I'd like to somehow walk down each of the digits one at a time and add them up. Ah, that's a looping mechanism, right? I need to have some way of walking through them.

去取这个数的,每个数字然后把他们加起来,啊，这是个循环机制对不对？,我得找到一个遍历它们的方法,一种简单的方法可能。

麻省理工公开课 - 计算机科学及编程导论课程节选

"I've been able to walk up and down the halls without any trouble, " she said.

CNN: Pacemakers found to help heart failure patients

Mr Millin inquired, half-joking, whether he should walk up and down in the traditional way of pipers.

ECONOMIST: Bill Millin

People continued to walk up and down between homes and a crowd gathered near the police blockade where the suspects' house is located.

WSJ: Dragnet Quiets Normally Bustling Boston