1·They go back to their own burrow.
他们回到自己的洞穴。
2·It's a fine sunny day in the forest, and a rabbit is sitting outside his burrow, tippy-tapping on his typewriter.
这是森林里一个阳光灿烂的日子，一只小兔子坐在洞穴外，在打字机上敲敲打打。
3·Groundhogs spend the winter hibernating in a specially dug hibernation burrow, their breathing and heartbeats slowed to a snail's pace.
土拨鼠在一个特别的冬眠洞穴中冬眠，它们的呼吸和心跳慢到和蜗牛差不多。
4·Birds shelter in nests, rock overhangs, trees, and dense shrubs to avoid the hottest hours of the day, while mammals like the kangaroo rat burrow underground.
鸟类在巢穴、岩石悬垂处、树丛以及茂密的灌木丛中寻找庇护，以躲避一天中最热的时候；而像更格卢鼠这样的哺乳动物则选择藏身于地下的洞穴中。
5·A black-tailed prairie dog perks up outside his burrow in South Dakota.
在南达科他州，一只黑尾巴的草原土拨鼠昂首站在他的洞穴外面。