Our story today is' Lessons from a Pony 'by Lincoln Steffens.

我们的故事今天是林肯steffens的“来自一只小马的课”。

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Australian climatologist will Steffens argued that climate change caused by human activity will fundamentally alter the air, land and oceans for tens of thousands of years.

澳大利亚气候学家威尔·斯蒂芬斯辩称，由人类活动引起的气候变化将完全地改变数万年的空气、土壤和海洋。

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Most speak neither German nor their mother tongue well, says Volker Steffens, the school's principal.

ECONOMIST: Germany's Turkish minority