Where else? Oil is probably the classic example.

别的呢,石油产业也是个典型案例吧

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He said, of course we're worried on reliance, so much of our GDP and of our government revenues is oil-related.

他回答道，我们当然很担心这点，我们大部分的GDP和政府收入,都与石油产业相关。

耶鲁公开课 - 金融市场课程节选