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

片土地就像世界各地大部分草地一样，经历长达一个世纪的过放牧。

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

麋鹿在草原上过啃草，对宝贵的生态系统造坏。

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

鲨鱼限制动物的数量，否则些动物会过放牧些重要植物。