灰狼被重新引入黄石国家公园。
我在黄石国家公园做了一年多的狼踪迹志愿者。我的工作是追踪合记录狼的信息。
I've been working as a volunteer wolf tracker in Yellowstone National Park for over a year. It's my job to follow wolves to record information about them.
经过多年的激烈争论，灰狼被重新引入黄石国家公园。
After years of heated debate, gray wolves were reintroduced to Yellowstone National Park.
直到去年，黄石国家公园的狼群数量已经增长至超过170匹。
By last year, the Yellowstone wolf population had grown to more than 170 wolves.
在美国怀俄明州黄石国家公园里，一只勇敢的野鼠与一头身量一百倍的郊狼对峙。
A courageous vole takes on a coyote a hundred times his size in Yellowstone National Park, Wyoming.
黄石国家公园狼计划是一项有价值的实验，有助于生物学家决定是否将狼重新引入美国其他地区。
The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.
几座漂浮的山峰，衬托出长着紫色的树林的黄石国家公园式的美景。
Visualize Yellowstone with purple trees, and a few floating mountains in the background.
几座漂浮的山峰，衬托出长着紫色的树林的黄石国家公园式的美景。
Visualize Yellowstone with purple trees, and a few floating mountains in the background.
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