短語(yǔ)詞組短語(yǔ)semi arid loess hill region 半干旱黃土丘陵區(qū)loess hill -gully region 黃土丘陵溝壑loess hill and gully region 黃土丘陵區(qū)Junger loess hill -gully region 準(zhǔn)格爾黃土丘陵溝壑區(qū)loess hill semi -arid region 黃土丘陵半干旱區(qū) 返回 loess hill region