Located in tropical areas at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered trees or shrubs.
"热带稀树草原位于热带地区，海拔较低，是一种稳定的生态系统，由广阔的草地和稀疏分布其中的树木或灌木组成，有些地区湿润，有些地区干燥。
The hills recede into the distance and now we are in vast grasslands dotted with termite mounds, skyscraper sandcastles of the insect world.
群山渐渐隐去，我们现在是在广阔的草原上，白蚁丘星罗棋布，那是昆虫世界的摩天大楼。
A third of the country is covered by forest and there are also vast grasslands and countless lakes and rivers.
国土的三分之一覆盖着森林，还有大片的草原，无数的湖泊和河流。其气候差异甚大。
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