down·burst 
(dounbûrst′)
(dounbûrst′)n.
A powerful downward air current from a cumulonimbus cloud, typically associated with thunderstorm activity.
| 单词 | downburst |
| 释义 | down·burst (dounbûrst′)n. A powerful downward air current from a cumulonimbus cloud, typically associated with thunderstorm activity. |
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