Google yesterday became the first large online ad network to charge clients only if their adverts have been seen, in a radical shake-up of pricing that affects more than 2m sites in its display advertising network.
谷歌(Google)昨日宣佈，廣告只有被瀏覽才收取費用，由此成爲業內首家作出如此承諾的大型網路公司。谷歌此舉將會給它的廣告定價帶來巨大影響，波及到它廣告展示網路中的逾200萬家網站。
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