雪雁飞行数千英里去它们冬天的家。

Snow geese travel thousands of miles to their winter homes.

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它们产下卵，要孵化整个冬天。

They lay eggs that incubate through the winter.

《柯林斯英汉双解大词典》

由于牛羊不能在恶劣的气候条件下生存，每年冬天都要把它们带到南方去。

Since sheep and cattle can't survive harsh climates, they needed to be taken south every winter.

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