They had to walk across an emergency footbridge, holding onto a rope that served as a rail.

他们不得不抓着当作栏杆用的绳子，走过一架应急人行桥。

《柯林斯英汉双解大词典》

They had to walk down a long hall.

他们必须通过一道长走廊。

youdao

To the bus stop, the bus had left, they had to walk to go home.

到汽车站，班车已经开走了，他们只得步行往家走。

youdao

"Officers used a tractor to get to the scene and even that got stuck in the snow and they had to walk and crawl the remaining distance, " he said.

BBC: Gary Windle

They had to walk a fine line to avoid anything too gimmicky, even working on the giant Broadway stage, so they decided against threading lights through the heel of the shoe or other special effects.

WSJ: Cinderella's slipper: the ultimate must-have shoe

"I'm trying to imagine what the civil rights movement would have been like if, in fact, they had hired demonstrators to walk down South, " Chaison said.

NPR: Union Outsources Picket Lines to the Homeless