The bottom fell out of the market when the economy tanked last fall. 当去年秋季经济样败之后价格底线最终退出市场。
Evaporating access to credit and fears of an economic washout are taking a toll on oil prices, forcing speculators using borrowed money out of the market. 不断枯竭的信贷来源和对金融危机的担忧正在冲击着油价，迫使那些举债投资的投机商退出市场。
