1. The cattle are grazing in the field.
   牛群在田野上吃草。
2. We're grazing the sheep in the next field.
   我们正在旁边一块地里放羊。
3. Horses are grazing in the pasture.
   马儿正在牧场上吃草。
4. Cattle were grazing in the field.
   牛在地里吃草。
5. Succession to a climax can be held at any stage by human intervention, such as grazing on chalk downland.
   人为的干扰可以阻止演替的进行，例如过渡的放牧。
6. Whether the selection of grassland grazing systems is reasonable has direct influences on sustainable utilization of grassland resources, bioenvironmental quality on grassland and herdmen's income.
   草地放牧制度选择的合理与否，直接影响草地资源的可持续利用和草地生态环境质量以及牧户经营收入。
7. Where aridity, degeneration or soil erosion occurs as a result of overgrazing, users of the grasslands shall be required to reduce grazing and resow forage grass so as to restore vegetation.
   因过量放牧造成草原沙化、退化、水土流失的，草原使用者应当调整放牧强度，补种牧草，恢复植被。

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