The sample consisted of pebbles of hardened sediment that had once been soft, deep-sea mud, as well as granules of gypsum and fragments of volcanic rock.

这一样本包括曾经柔软的的硬化沉积物的卵石、深海淤泥以及石膏颗粒和火山岩碎片。

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Once, in Toledo, Ohio, as we left the field after playing the anthem for the Mud Hens, an umpire approached us.

有一次，当我们在俄亥俄州托莱多为沼泽鸟对演奏完国歌离开后，一位裁判走了过来。

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The Frogs gasped as they dived once more into the mud. But this time Jupiter would not listen.

青蛙们喘着气，又钻到了泥土里。可是，这一次，丘比特不再理会他们了。

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Network Rail said once engineers had removed the mud, rubble and debris and made the line safe, trains would resume at a reduced speed.

BBC: Abseilers inspect Devon railway line landslip

At a construction site in China, however, he once illustrated a concept for a client by stacking up a few bricks and scratching lines in the mud.

WSJ: Designing Towers to Catch the Sky | Creating

In the car park, twisted chunks of mud-covered metal lie at odd angles - what were once hard-saved-for cars, swept and up and smashed by the force of the blast that destroyed the building.

BBC: Oklahoma tornado: Resilience amid the ruins