Not all temperate plains are so rich and colourful in the summer. 并非所有温带地区的草原 在夏季都是如此五彩斑斓
So she stashes much of her plunder for later in the year 所以狐狸会把蛋藏起来
Some flocks are so vast that they can take five hours to pass overhead. 这些鸟数量众多 让它们从你的头顶上飞过要花5个小时
With so many pairs of eyes keeping watch, 有了这么多双警惕的眼睛
The urge to parent is so strong that they will compete with one another to adopt any chick they find. 这些母鸟们自己的宝宝夭折了 便争养任何碰到的孤儿
The stab wounds he received from the walrus are so severe that he can barely walk. 它受了重伤 现在连走路都很困难
and so provide shelter to those taking their turn in the middle. 以便保护轮流站在中间的企鹅
so the transfer must be done quickly 所以交接过程必须迅速完成