Why do you want to know the U. S. Liberal arts College rankings?
为什么你想知道美国文理学院排行？
Yet, did you know that the U. S. has some 21 billion barrels in reserve, so why doesn't it produce more?
然而，你是否知道，美国其实有210亿桶的石油储量，那么为什么他们不多生产一点呢？
Yet, did you know that the U. S. has some 21 billion barrels in reserve, so why doesn't it produce more?
然而，你是否知道，美国其实有210亿桶的石油储量，那么为什么他们不多生产一点呢？
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