1. Some rocks from volcanoes break down to form black sand.
有些火山岩被撞碎后会形成黑色的沙。
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2. When these rocks break down into the grains that make up the sand on our beaches, their colour is mostly determined by the presence or absence of iron.
当岩石分解成为颗粒够成沙滩时，颜色则是由铁元素氧化物的存在与否决定的。
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3. They tried to break the icy sand with their knives, but it was not easy.
他们试图用他们的刀，打破在冰冷的沙滩，但这并不容易。
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4. By pushing the bikes they are able to stay largely on top of the sand and although it is hard work and I have to take a short break to get my breath back, we manage to get both bikes across.
5. But no damage is done if the fin strikes the sand sans-rider - there isn't enough weight to force a break.
因为长板在冲到沙滩上时板上没有重量和压力来造成鳍的损坏。
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6. Designers from the water table flow design, seems break off design, and sand table lamp bright, outlined Chinese modern art picture a magnificent for us.
7. Listen with your heart; you will understand. Let it break upon you like a wave upon the sand. -grandmother Willow.
用心倾听，你会明白的。让它指引你，就像海浪打在沙滩上。——薇洛奶奶。
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8. It is difficult to determine the effects of straw-break surface on the structure of drifting sand current and the wind speed profile in the sand-moving region due to the complexity of straw-breaks.
由于草方格构成的下垫面复杂多变，其对风沙流结构与风沙活动层风速廓线的影响很难确定。
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9. Big low stand fan sand bodies that have been found distribute along the circle belts and were controlled by fault break slopes.
已发现的大型低位扇体沿环带分布，并受断裂坡折带的控制。
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10. Touch the sand, open a bottle of Coke, let us start Carnivalization it: free your passion, your spring break!
触摸沙滩，开一瓶可乐，让我们开始狂欢吧：释放你的热情，释放你的春假！
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11. It was a new attempt to put a core wall which sit in rubble mound break - water to get good effect of wave attenuation and stop silt and sand from entering a part.
在斜坡堤内设置刚性混凝土心墙板，是增加消浪效果和防止泥沙进入港内的一种新尝试。
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12. Certain slope-break zone types indicate the activities and distributions of syn-depositional faults and control sediment dispersal and sand body accumulation.
特定的坡折带类型揭示了同沉积断裂的活动和分布特征，制约着沉积物的分散过程和砂体堆积。
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13. Certain slope-break zone types indicate the activities and distributions of syn-depositional faults and control sediment dispersal and sand body accumulation.
