The snow petrels have arrived and are courting. 雪海燕来了 在这里求偶
The birds have flown inland for over 300 miles to reach this breeding site. 它们往内陆飞行300英里才来到这里繁衍
they must have wondered what unearthly sights lay in store. 他们必曾感慨于地球上竟有如此别样的地方存在
but nothing could have prepared them for the ice world that finally loomed into view. 当冰雪世界真实的出现在他们眼前的时候 他们感到的是无法用语言形容的震撼
Eggs that have remained in the ground for 20 years begin to hatch. 在地下埋藏了20年的虫卵开始孵化
A single shower can enable seeds that have lain dormant for 30 years or more to burst into life. 一场大雨使得在地下沉睡了30多年的 种子迸发出生命的活力
which have more nutrition and moisture than the stems. 因为草根中的营养和水分比茎干多得多