black squall

基本解释

Development process of the black storm on May 5,1993 and the relation of development of squall line to the black storm are analysed.
该文分析了1993年5月5日黑风暴的发展过程和景观以及天气形势，研究了干飑线和强冷锋前干飑线发展同黑风暴爆发的关系。
Lightning ripped through purple-black clouds, letting loose torrents of rain. There was a drumroll of thunder, and suddenly the squall was racing toward him with the fury of charging cavalry.
闪电划开了紫黑色的云层，暴雨倾泻如注，雷声象战鼓一样轰鸣，巨浪象一排排狂怒的骑兵向他猛扑过来。
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