One photo showed a young boy crouched on a beach beside piles of the leaves as a dump truck carried off a large load of them.

一张照片展示了一个小男孩蹲在海滩上，旁边是成堆的树叶，一辆自卸卡车正把一大堆树叶运走。

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Five tons of soil would fill a small dump truck; if spread over an acre, it would make a layer slightly less than the thickness of a dime.

五吨的土会装满一辆小型自卸式卡车；若铺开在一英亩的土地上，它会形成不足一角硬币厚度的土层。

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"It was a gigantic difference, " said Matt Spaccarelli, 39, a dump truck driver from Simi Valley, Calif.

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On a recent morning at the academy, a bulldozer and a dump truck leveled a stretch of soil for a running field.

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It's a four-wheeled contraption with a giant bucket up front that scoops and lifts dirt so it can be carted away in a dump truck.

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