Distraction is not a static obstacle that you avoid like you might avoid a rock in the road.

分心不是一成不变的障碍，你不可能像避开马路上的石头那样避开分心的事物。

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In Red Rock Valley the road is bordered by gigantic rocks.

在红岩谷，道路两边都是巨大的岩石。

《柯林斯英汉双解大词典》

The researchers also made a discovery in the stone pit at the northern end of the road: the first evidence that the Egyptians used rock saws.

研究人员还在路的北端的一个采石场中发现了埃及人使用岩锯的第一个证据。

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For years, rock slides plagued the road, resulting in an average 574 accidents per year from 1998 to 2004.

BBC: Vancouver after the Games

They've scored starring roles in the Disney Channel flick Camp Rock, hit the road for a sold-out concert tour and released a chart-topping album--A Little Bit Longer.

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Along the twisting mountain road, huge boulders had rolled down in rock slides.

NPR: Landslides After Quake Crush Towns, Roads