As they dragged along the ground they fell asleep standing, stopped, woke up, moved another step and slept again.

他们在地上费力地走着，站着睡着了，停了下来，醒了过来，又走了一步，又睡着了。

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As water flows along the ground, it picks up sand, pebbles, even boulders.

雨水沿着地面流动时，夹带了泥沙、卵石，甚至大圆石。

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In the valley below ran a hungry dog, sniffing along the ground as if in search of mice or quail.

从山谷里跑来了一条饥肠辘辘的狗，它沿路嗅探，仿佛在寻找小耗子或者小鹌鹑。

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Scientists have shown how the insects will use the Milky Way to orientate themselves as they roll their balls of muck along the ground.

BBC: Dung beetles guided by Milky Way

He returned back to Earth sometime later, looking shell-shocked but alive as a crowd of men along the desert ground rejoiced, video from state-run Press TV showed.

CNN: Reports: Monkey soars from Iran into space -- and back

But Les kept crawling, kept pulling himself along, closer to that bunker, even as the bullets hit the ground all around him.

WHITEHOUSE: President Obama Awards the Medal of Honor to Specialist Leslie H. Sabo, Jr. | The White House