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