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来源:雅诚德英语网
USFWS also set an interim goal of restoring prairie chicken populations to an annual average of 67,000 birds over the next 10 years.
美国鱼类及野生动植物管理局还设定了一个中期目标,即在未来10年内将山鸡的数量恢复到每年平均67,000只的水平。
USFWS also set an interim goal of restoring prairie chicken populations to an annual average of 67,000 birds over the next 10 years.
美国鱼类及野生动植物管理局还设定了一个中期目标,即在未来10年内将山鸡的数量恢复到每年平均67,000只的水平。