| 单词 | 降气 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔downburst〕An extremely powerful downward air current from a cumulonimbus cloud, typically associated with thunderstorm activity.下降气流：多与雷雨相关的来自积雨云的极强下降气流美国传统Birds fly by catching upward and downward currents of air.鸟类靠驾驭上升和下降气流来飞行。剑桥国际 |
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