短語詞組短語semi -arid sandy area 風(fēng)沙半乾旱類型區(qū)cold semi -arid area 寒冷半乾旱區(qū)hilly semi -arid area 丘陵半乾旱區(qū)arid semi -arid area 乾旱半乾旱區(qū)northern semi -arid area 北方半乾旱地區(qū)north semi -arid area 北方半乾旱區(qū)arid to semi -arid area 乾旱 返回 semi-arid area