短语词组短语brown grey earth 棕色灰壤brown red earth 棕红壤yellow brown forest earth 黄棕色森林土brown n earth 棕土brown forest earth 棕色森林土leached brown earth 强淋溶土brown earth soil 棕钙土mountain soddy brown earth 山地草地棕壤grey brown earth 灰棕壤 返回 brown earth