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semi-arid region
anim.husb. 半旱境
hydroel.st. 半干旱地区
space 半干旱区
tech. 半干旱
semi-arid regions
desert. 半干旱区 (全球半干旱区面积为1874万km²、占五洲总面积的14.5%)
semi-arid region: 6 phrases in 3 subjects
Agriculture1
Ecology4
United Nations1