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。
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。
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。
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.
通过推动自行车他们能够留在很大程度上沙顶，虽然这些工作都很辛苦，我要参加一个简短的休息让我喘口气，我们能够得到这两名自行车过河。
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。
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.
设计师从流动的水景台设计、似断非断的隔断设计、以及璀璨的沙盘灯饰，将我们的售楼部勾勒成一幅壮美的中国现代艺术大画卷。
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。
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。
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。
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！
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。
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。
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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