The road along the slope crest is the only vehicular access to the Theology Building.

斜坡顶部是通往神学楼唯一的途径。

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To ensure safety of the slope and the road at the slope crest, slope stability improvement works are believed to be necessary.

为确保斜坡及坡上道路安全，实在有重新进行巩固的必要。

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In the midst of his preoccupations, he perceived, from a shadow cast by the sun, that some one had halted on the crest of the slope immediately behind him.

他正在这样思前想后，忽然看见太阳把刚刚来到斜坡顶上紧挨着他背后的一个人的影子投射在他的眼前。

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When it comes time to descend, there are two ways down: walk back down along the crest you climbed up or sand-ski down the slope.

CNN: Romancing the dune in Namibia