英语语法分析

And when game moved out of the lowlands in early spring, the expedition decided to return east rather than face possible starvation.

然后，猎物在早春迁徙出低地时，探险队决定返回东部，以免遇到可能出现的饥饿问题。

These springs are the sources of streams and rivers, which cut through the rocks and carry away debris from the mountains to the lowlands.

这些泉水是溪流和河流的源头，这些溪流和河流穿过岩石，把山上的碎石带到低地。

These people exploited the landscape intensively, foraging on hill slopes for wild cereal grasses and nuts, while huntinggazelle and other game on grassy lowlands and in river valleys.

这些人集中地开发这片土地，在山坡上寻找野生的谷类植物和坚果，而在草木茂盛的低地和河谷里猎捕瞪羚和其他猎物。