英语语法分析

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。

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。

Wolves are important to Yellowstone.

狼对黄石公园很重要。