According to the U.S.Geological Survey (USGS), the Bakken formation could contain a mind-boggling 413 billion barrels of oil in place.是什么意思_According to the U.S.Geological Survey (USGS), the Bakken formation could contain a mind-boggling 413 billion barrels of oil in place.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句