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1. 乾度：一种水份不足以维持植物生命之气候;亦即为一种极大乾度(Aridity) 之气候. 柯本(W.Koppen)在其气候分类中规定沙漠气候 (符号「BW」) 指年雨量最大值如下: 主要之雨量在冷季
2. 干燥度：乾燥地形 arid landform | 乾燥度 aridity | 乾燥区 arid region
3. 干旱：arid 干旱的 | aridity 干旱 | ariel 羚羊类
4. 干燥性：arid region 干旱区域 | aridity 干燥性 | arm signal 手势信号
1. Facing serious aridity, the city substantially increased investment to combat it.
2. The devastating downpour that hit Beijing on July 21 shocked not only locals, but also expat residents who are usually inured to the aridity of the Chinese capital.
noun
1. the quality of yielding nothing of value
Synonym: fruitlessness barrenness
2. a deficiency of moisture (especially when resulting from a permanent absence of rainfall)
Synonym: aridness thirstiness