At times Matisse scraped the surface of his pictures, scratched them or made incisions as if they were clay.

有时马蒂斯对画作的表面又刮又擦、又切又割，就像对待一团泥巴。

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Before this, apart from a couple of very brief work trips and a wedding, I’d barely scraped the surface of North America, but somehow, the whole thing felt fine, easy, completely familiar.

在此之前,除了几次非常短暂的出差和一次婚礼之旅,我和北美大陆几乎没有任何交集,但不知怎么回事,这儿的一切让我觉得舒适、惬意,完全没有陌生感。

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Dried products are then scraped off by the blade fitted on the surface of the cylinder, fall down to the spiral conveyor under the blade, and are conveyed, collected and packed.

干燥好的物料被装置在滚筒表面的刮刀铲离滚筒，到置于刮刀下方的螺旋输送器，通过螺旋输送器将干物料集中、包装。

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"It is only the surface that has been scraped for metals around the world, " said Magnus Ericsson, a senior partner at Raw Materials Group, a Solna, Sweden-based consultancy.

WSJ: Exhausting the Earth's Resources? Not So Fast