如果每个人都让他们的山羊在共有地吃草，那么最终草地会被破坏变成一个荒地，没有草留给任何人。
If everyone lets their goats graze in the commons, it turns into a devastated wasteland with no grass left for anyone.
在森林中那些无法支持草和其它草地植物生长的地方，黑尾鹿可以吃越橘类植物、沙龙白珠树、山茱萸和几乎任何其他种类的灌木和草本植物。
Where the forest inhibits the growth of grass and other meadow plants, the black-tailed deer browses on huckleberry, salal, dogwood, and almost any other shrub or herb.
通过监测草的形状、颜色和质地来跟踪草地的质量。
The quality of grassland will be tracked by monitoring the shape, color and texture of grass.
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