Hansel had seen no cat, but he stayed behind every time to drop a white pebble from his pocket on the ground as they walked.

汉斯没有看到猫，但他每次都留下来，在他们走的时候从口袋里掏出一块白色的鹅卵石扔在地上。

youdao

We could hear their voices growing fainter as they walked down the road.

他们沿路走远时我们听见他们的说话声逐渐模糊。

《牛津词典》

He raised his voice a little, talking into the wind as they walked along.

当他们向前走时, 他提高了一点儿嗓门, 迎风讲着话。

《柯林斯英汉双解大词典》

Two senators who opposed the bill heard the noise as they walked down the steps of the capitol building.

VOA: special.2009.04.30

As they walked up and out of the canyon, they were killed by Indians.

VOA: special.2009.10.07

The friendship between the two men was obvious as they walked from the stadium together , and their families remain in contact to this day.

VOA: standard.2009.08.19

They say that the "hapless women" were molested and jeered by large crowds as they walked.

BBC: Two more Indian tribal women 'forced to walk naked'

Mrs Russell and her daughters were targeted as they walked along a country lane.

BBC: Michael Stone

He was polite, and would cup Dr Corkin's elbow as they walked around MIT.

ECONOMIST: H.M.