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)昨日宣布，广告只有被浏览才收取费用，由此成为业内首家作出如此承诺的大型网络公司。谷歌此举将会给它的广告定价带来巨大影响，波及到它广告展示网络中的逾200万家网站。
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