去年油价腰斩，从每桶110美元暴跌至55美元，原因显而易见：沙特阿拉伯决定通过扩大产能增加其占全球石油市场的份额。
When the oil price halved last year, from $110 to $55 a barrel, the cause was obvious: Saudi Arabia’s decision to increase its share of the global oil market by expanding production.