美国鱼类和野生动物管理局对黄石公园的狼群进行了仔细的监控和管理。
The US Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone.
就在这个时候，美国国家航空航天局决定通过拍摄黄石公园的照片来测试一些新的高空照相机。
Just at this time NASA decided to test some new high-altitude cameras by taking photographs of Yellowstone.
黄石公园野牛群是美国最大的公共的美洲野牛群。
The Yellowstone Park Bison herd is the largest public herd of American Bison in the United States.
至少11000年前，当土著美国人首次开始在该地区捕鱼狩猎时，黄石公园的人类历史就开始了。
The human history of the park begins at least 11,000 years ago when aboriginal Americans first began to hunt and fish in the region.
至少11000年前，当土著美国人首次开始在该地区捕鱼狩猎时，黄石公园的人类历史就开始了。
The human history of the park begins at least 11, 000 years ago when aboriginal Americans first began to hunt and fish in the region.
你可能不会觉得那有什么奇怪的，因为你知道有些细菌可以存活在老忠实泉（Old Faithful，美国著名的间歇泉，位于黄石公园——译注）和温泉中等等地方。
You probably don't think that's particularly weird, because you know that there are bacteria that live in Old Faithful and hot springs and so forth.
你可能不会觉得那有什么奇怪的，因为你知道有些细菌可以存活在老忠实泉（Old Faithful，美国著名的间歇泉，位于黄石公园——译注）和温泉中等等地方。
You probably don't think that's particularly weird, because you know that there are bacteria that live in Old Faithful and hot springs and so forth.
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