For a century, this land had been overgrazed by livestock, like most grasslands around the world.

这片土地就像世界各地大部分草地一样，经历了长达一个世纪的过度放牧。

Elk were overgrazing the grassland, causing damage to the precious eco-system.

麋鹿在草原上过度啃草，对宝贵的生态系统造成了破坏。

This economic reliance on livestock in certain regions makes large tracts of land susceptible to overgrazing.

在某些地区，家畜是人们的主要经济来源，大量土地因此而遭受过度放牧风险。

Sharks limit the abundance of animals which would otherwise overgraze these essential plants.

鲨鱼限制了动物的数量，否则这些动物会过度放牧这些重要植物。

None of the departments had set rules for conduct in the park, so hunters killed park wildlife, cattle overgrazed fields, and visitors vandalized landmarks.

没有一个部门制定了公园内的行为规则，因此猎人杀死了公园内的野生动物，牛群过度放牧，游客破坏了地标。