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1·Grey wolves were reintroduced to Yellowstone National Park.

灰狼被重新引入黄石国家公园。

2·The next day we're at Yellowstone National Park, where we have a picnic.

第二天，我们在黄石公园进行了野餐。

3·Fourteen wolves were caught in Canada and transported to the Yellowstone.

有十四匹灰狼在加拿大被捕，并被送往黄石公园。

4·By the 1920s, wolves had practically disappeared from the Yellowstone area.

到20世纪20年代，黄石地区的狼几乎都消失了。

5·By last year, the Yellowstone wolf population had grown to more than 170 wolves.

直到去年，黄石国家公园的狼群数量已经增长至超过170匹。

6·Today, the debate continues over how well the grey wolf is fitting in at Yellowstone.

今天，关于灰狼是否适应黄石公园的争论仍在继续。

7·After years of heated debate, gray wolves were reintroduced to Yellowstone National Park.

经过多年的激烈争论，灰狼被重新引入黄石国家公园。

8·Yellowstone obviously was of this second type, but Christiansen couldn't find the caldera anywhere.

黄石公园显然属于第二种类型，但是克里斯蒂安森就是找不到这个火山口。

9·A courageous vole takes on a coyote a hundred times his size in Yellowstone National Park, Wyoming.

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。

10·As early as 1966, biologists asked the government to consider reintroducing wolves to Yellowstone Park.

早在1966年，生物学家就要求政府考虑将狼重新引入黄石公园。

黄石公园

1·Yellowstone obviously was of this second type, but Christiansen couldn't find the caldera anywhere.

黄石公园显然属于第二种类型，但是克里斯蒂安森就是找不到这个火山口。

2·Just at this time NASA decided to test some new high-altitude cameras by taking photographs of 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。

3·It paints summer skies as well, and can occur as far south as Yellowstone.

它同样出现在夏天，甚至出现在远至南方的黄石公园。

4·Yellowstone is at the northeastern end of the Snake River Plain, a great U-shaped arc through the mountains that extends from Boise, Idaho some 400 miles (640 km) to the west.

黄石公园是在蛇河平原的东北端。蛇河平原是一个巨大的U弧形，由爱达荷州的博伊西山脉向外延伸出来的群山向西大约400英里(640公里)。

5·Yellowstone has numerous recreational opportunities, including hiking, camping, boating, fishing and sightseeing.

黄石公园有许多娱乐机会，包括徒步旅行，露营，划船，钓鱼以及游览。

(1)yellowstone national park黄石国家公园（美国第一个国家公园）

(1)yellowstone river黄石河（河流名，位于美国西北部）