Because of continual price increases, the value of the pound has fallen in recent years.
2
然而，近年来由于牛，绵羊，山羊和马的过度使用，草场资源快速退化。
Recent intense utilisation by cattle, sheep, goats and horses, however, has resulted in rapid deterioration of the grassland resource.
3
多数发现于东亚和印度尼西亚，近年来由于偷猎和森林植被的减少，它们的数量锐减。
They are found mostly in South Asia and Indonesia but their populations have been in decline for many years due to poaching and loss of forest habitat.
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