US sanctions on Venezuela's national oil company have accelerated the unprecedented collapse of its oil output and set off a domino effect in the global energy market.
원문출처 : https://www.cnn.com/2019/02/19/investing/venezuela-oil-sanctions-pdvsa/index.html
원문출처 : https://www.cnn.com/2019/02/19/investing/venezuela-oil-sanctions-pdvsa/index.html