The listening journal you assigned us to keep for the Intro to World Music class, I am not sure I understand what to do.
您在《世界音乐入门》课上让我们写一篇音乐报告，我并不确定自己该写些什么。
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A 2015 study in the journal Nature predicted that the average income in the poorest countries will be 25% lower by 2100 compared to a world without warming, while some of the richest countries—like the USA—could experience an increase in income.