一场长期的干旱严重破坏了当地的农业。
A prolonged ___drought has devastated the local agriculture.
科学家警告，气候变化可能会增加严重干旱的发生频率。
Scientists warn that climate change could increase the frequency of severe ___droughts.
该地区正在应对饥荒和干旱的双重挑战。
The region is grappling with the dual challenges of famine and ___drought.
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