The 17-year-old boy, identified by his surname, "Zheng", said that he had sold the kidney after spotting an online advertisement offering cash to the organ donor.

这个姓郑的17岁男孩说，他从网上看到一则广告说器官捐献者可以获得现金，于是就卖掉了自己的肾。

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The young American, who had just completed high school with excellent grades in the central Turkish town of Kayseri, had seen an online advertisement for volunteers to deliver aid to Gaza.

刚刚在土耳其中部城市开塞利（Kayseri）以优异的成绩完成了高中学业，这个年轻的美国人看到一则招募志愿者运送救援物资到加沙的网上广告。

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The breast milk was provided by mothers who answered an advertisement on online mothers' forum Mumsnet.

商家首先在妈咪论坛“母亲网”上发布了一则收购母乳的广告，受到很多位哺乳期女性的响应。

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She recruited a pool of 396 participants via an online advertisement.

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As a result, Microsoft's online-advertisement platform has not succeeded either.

ECONOMIST: Microsoft after Gates

With the launch of the new version of Twitter on Tuesday, the online service also released its first video advertisement to promote it.

FORBES: The Story Behind Twitter's First Video Ad: 1 Million Views In One Day