1·More recently, on a blazing summer day, he took me back to one of the den sites, in a slumping bank above the South Saskatchewan River.
最近，在夏天一个炽热的日子，他带我回到南萨斯喀彻温河坍塌河岸上这样一个巢穴地点。
2·So they migrate radially—in all possible directions away from the den—like starburst embers from a Fourth of July rocket.
于是，它们呈放射状移动——从巢穴向所有可能的方向迁移——像国庆焰火似的四射开来。
3·When the pups are very small, other pack members bring food to the mother so she does not have to leave the den.
如果狼宝宝太小，狼群的其他成员会给狼妈妈带来食物，这样她就不用离开巢穴。
4·There was a den near the river, he said wistfully, and they'd migrate six miles up to a nice patch of open prairie full of gophers.
他留恋地说，河边有一个巢穴，它们向上迁移了6英里（约9.66公里），到开阔草原地鼠多的好地块去了。
5·They have been in your den, but none of them comes out!
他们已经进了你的巢穴，但是没有一个出来的！