全球广告业正在进行深刻的转型。
随着全球经济步入衰退，广告业专家认为，报纸可能是受影响最严重的行业之一。
With the world heading into recession, advertising experts believe newspapers could be one of the worst-hit sectors.
正是在此类社会背景下，广告业在全球得以长足发展。
It is against this social background that advertising has developed so much in the world.
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