求翻译：过去一年中MF Global投资购买了欧洲国家发行的价值60亿美元主权债券,持有大量欧债的MF Global在录得有史以来最大的季度亏损的同时，又被评级公司连降两级至垃圾级，耗尽其银行信贷额度，MF Global陷入泥淖。是什么意思？

Over the past year, mf global investing European countries issued sovereign bonds worth $ 6 billion, holds a lot of mf global debt in Europe recorded the biggest quarterly loss ever at the same time, has been a fall of two rating to junk level, exhausted its bank credit lines, mf global bogged down.

Holding a large amount of debt euro MF Global ever recorded in the biggest quarterly losses in the credit rating company, and was a two-level to junk grade, depletion of its bank credit, MF Global had fallen into a quagmire.

In the past in a year MF the Global investment has purchased the European country release value 6,000,000,000 US dollar sovereignty bond, has massive Ou Zhai MF Global while to record which the greatest quarter loses money throughout history, also is fallen by the rating company company two levels t

In the past year MF Global has invested $ 6 billion worth of sovereign bonds issued by European countries, holding a large number of European debt MF Global largest quarterly loss ever recorded at the same time, have been rating us drop two levels to junk level, drain their bank credit lines, MF Glo