savannan.(非洲)大草原;无树平原
savanna woodland稀树草原疏林
savanna red soil燥红土
Savanna Twig snaken.荒原藤蛇(蝣蛇科;荒原藤蛇)
savanna-woodland热带稀树林
Savanna vegetation稀树草原植被
savanna shrub-grass稀树灌草丛