Here, geese can nest on the ground in relative safety. 在这里 雪雁可以比较放心地把巢筑在地上

80. It's a long way to travel, but for a short period, the tundra is the ideal place for a grazer.
    北极的苔原虽然路途遥远, 但仍有短短的一段时间是食草动物的天堂
81. The grass grows vigorously during the short, intense summer
    在这短暂夏日 草儿茁壮生长
82. and there are fewer predators than further south.
    而且这里的掠食动物比南方少多了
83. Here, geese can nest on the ground in relative safety.
    在这里 雪雁可以比较放心地把巢筑在地上
84. Nonetheless, this female must incubate her eggs for three weeks
    然而 雌雪雁必须花三周的时间孵蛋
85. and throughout this time she will be very vulnerable.
    而在这三周里 它将变得易受攻击
86. An Arctic fox surveys the colony.
    一头北极狐在雪雁的领地附近逡巡

来自《行星地球 第一季 第七集 Planet Earth S01E07 伟大草原》第 83 行