而且就在上个月，我们确立了另一个第一：针对我们国家发电厂排放的汞、砷、和其他空气污染的第一个全国标准。

And just last month, we set another first: the first national standards for mercury, arsenic and other air pollution from our nation's power plants.

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同一地区另一个著名的坟场是个叫做惠灵顿洞穴的地方，人们在那里第一次发现了双门齿兽——目前已知的最大的有袋类动物。

Another famous boneyard in the same region is a place called Wellington Caves, where Diprotodon, the largest known marsupial, was first discovered.

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另一个关键的问题与第一个问题——即树木的大小问题有关：它需要到离水多远的地方获得木材？

Another critical issue and it's related to the first, to the size issue, is how far from the water should it go to get trees.

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