- As soon as couples arrive, they must stake a claim to a nesting patch.
一对雪雁来了之后就必须取得自己的筑巢地 - Ideal sites are in short supply and quarrelsome neighbours are all around.
理想的地方寥寥无几,邻里纠纷时常发生 - Disputes can be vicious.
有时闹得杀气腾腾 - Point taken!
方才罢休 - 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 - The grass grows vigorously during the short, intense summer
在这短暂夏日 草儿茁壮生长 - and there are fewer predators than further south.
而且这里的掠食动物比南方少多了
Point taken! 方才罢休
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