我依然只能通过马克和戴夫的鞋的颜色区分他们。
I can still only tell Mark and Dave apart by the colour of their shoes!
花旗集团的马克·马哈通过一个对广告买家的有效边沿的网络调查得出了最新信息，它调查了花旗客户在两家公司的消费情况。
Citigroup's Mark Mahaney provides an update, via a survey from online AD buyer Efficient Frontier, which surveyed its clients about their spending at both companies.
很多商业书刊的作者通过了卡尔·马克思的测试，那就是改变世界并诠释这种改变。
Some business writers pass Karl Marx's test of changing the world as well as interpreting it.
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