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单词	downburst
释义	downburst /ˈdaʊnbəːst / noun A strong downward current of air from a cumulonimbus cloud, which is usually accompanied by intense rain or a thunderstorm.Waterspouts are basically tornadoes that are over water, and downbursts are violent gusts of winds blowing directly downwards from the storm cloud.... A HP (high precipitation) super-cell produces very heavy rains, large hail, downbursts and tornadoes. Three categories of winds have been defined, as well: downdrafts, downbursts (also called macrobursts) and microbursts.
随便看	outreason outrebound out-red out-reign out relief Outremer out-rent outride outrider outriding outrig outrigged outrigger outriggered outriggerless outrigging outright outrightly outring outrival outro outroar outrode outroll outrolling

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。