杰夫•范•克拉维伦，一位德意志银行的分析家指出，培训一名副驾驶员要花一年的时间，但是培训乘务人员却只需要20天。
Geoff van Klaveren, an analyst with Deutsche Bank, points out that it takes a year to train a co-pilot, but cabin crew can be trained in 20 days.
杰夫•范•克拉维伦，一位德意志银行的分析家指出，培训一名副驾驶员要花一年的时间，但是培训乘务人员却只需要20天。
Geoff van Klaveren, an analyst with Deutsche Bank, points out that it takes a year to train a co-pilot, but cabin crew can be trained in 20 days.
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