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In the past decade, air emissions have increased substantially..... while leaks from the toxic holding ponds into the surrounding water supply have more than quadrupled.
在過去的十年里，空氣污染指數(shù)大幅飆升，與此同時有毒物質(zhì)存貯池向周邊水源供應(yīng)處的排放額翻了兩番。
Over the next seven years, oil production from here is expected to double.
在未來的七年里，這里的原油生產(chǎn)量將會翻一番。
How will this affect the wolves and buffalo? No-one knows for sure.
這會對狼群和野牛們造成什么影響？沒人確切知道答案。
Winter brings me full circle with the wolves.
冬天讓我和狼群們又見面了。
A year ago, I first met Storm and I've learned he is a truly impressive leader for his family.
一年前，我第一次遇見"風(fēng)暴"，我認(rèn)為牠是牠家族令人印象深刻的領(lǐng)導(dǎo)者。
He and Susie have kept all four pups alive.
牠和"蘇西"確保了牠們四只幼狼全部存活。
And they've grown so much, it's hard to tell them now from the adults.
牠們已經(jīng)完全長大了，很難從其牠成年狼群中辨別出牠們。
But have they learned any hunting skills from their parents?
但牠們從父母那學(xué)到捕獵本領(lǐng)了嗎？
Winter is the season when the pack is at full strength.
冬季是狼群們蓄勢待發(fā)的時節(jié)。
All of the wandering members of the family are back.
所有游蕩的家族成員都回來了。
And now is the time when they can really bring down large prey.
現(xiàn)在是牠們撂倒大型獵物的真正時刻。
