This is a process that happens when land becomes desert because of climate changes and because people cut down trees and dig up grass.

这是发生在由于气候变化以及人们砍伐树木、开垦草地等使得陆地变成沙漠时的过程。

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"I think I am going to dig up all the wild grass," she said.

“我想我要把所有的野草都挖出来。”她说。

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First, he used his hoofs to dig up the dirt and grass, to make it look like he had tried very hard to escape.

首先，他用蹄子挖起草和土，使这看起来就像他曾非常努力地逃跑；

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Go outside and dig up some grass to decorate your Super Bowl tabletop, Trigg recommends.

CNN: Kick off your Super Bowl party in style