【双语有声阅读】沙尘暴(5)

It is a fact that excessive herding¹ of animals and exploitation of grasslands² are responsible for the majority of dust storms. This means that dust storms are largely a result of human actions; in other words, they are controllable.

 

事实上，沙尘暴形成的主要原因是过度放牧及滥垦草原，这表明沙尘暴大多是人的活动所导致，也就是说，它们是可加以控制的。

1 herding   

中畜群

参考例句：

• The little boy is herding the cattle. 这个小男孩在放牛。
• They have been herding cattle on the tableland for generations. 他们世世代代在这高原上放牧。

2 grasslands   

n.草原，牧场( grassland的名词复数 )

参考例句：

• Songs were heard ringing loud and clear over the grasslands. 草原上扬起清亮激越的歌声。 来自《现代汉英综合大词典》
• Grasslands have been broken and planted to wheat. 草原已经开垦出来，种上了小麦。 来自《简明英汉词典》