调查发现，2009年航空公司的整体客户满意度连续第三年下滑，创下了四年的新低。
The study finds that overall customer satisfaction with airlines in 2009 has declined for a third consecutive year to a four-year low.
今年这次研究的整体满意水平与2008年基本持平，前两年客户满意度都在持续下降。
Overall satisfaction levels in the study remained about flat compared with 2008 levels, following two years of satisfaction declines.
虽然客户的整体满意度有所下降，但调查发现，客户指出2009年航班延误时间比2008年的72分钟缩短了8分钟。
Despite the overall decline in satisfaction, the study finds that the customer-reported length of flight delays decreased by eight minutes in 2009 from 72 minutes in 2008.
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