The files blame other UFO sightings on weather balloons, clouds or normal aircraft.
有一些文件把其它的UFO目击事件归因为气象探测气球 、 云彩或正常的飞行器.
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Suddenly the storm clouds thickened, winds came in gusts, and rain poured in torrents.
忽然间阴云密布, 狂风怒号, 大雨倾注.
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So bottoms of storm clouds, as we see them on the ground, look a sinister gray.
因此, 我们从地面上看去, 风暴云的底部像阴沉沉的灰色.
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Men have gazed in wonder at the bright patterns of lightning in storm clouds.
他们曾经惊异地注视着闪电在雨云密布的天空上展现耀亮的图案.
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Ultimately line with the storm clouds will be separated from the main cloud.
最终,滚轴云将与暴风的主体云层相脱离.
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Barely had he done this when another gust rolled the dark clouds over half the sky.
刚上好了雨布,又是一阵风,黑云滚似的已遮黑半边天.
汉英文学 - 骆驼祥子
Above, clouds cast shadows over the East Alligator River floodplains an undated picture.
在上图中, 云朵在东鳄鱼河平原上投上朵朵阴影.
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