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	psychical research psychical researcher tetherball Tethys Tet Offensive Teton Teton Sioux tetr- tetra tetra- tetrachloroethylene tetrachord tetracyclic tetracycline tetrad tetradactyl tetradactylous tetradactyly tetraethyl lead tetrafluoroethylene tetragonal tetragonally tetragram Tetragrammaton tetrahedral

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