It means that all third party applications are online only.

也就是说所有第三方应用都只是在线的。

youdao

They all agreed: the company would go online only, and at the end of 2005, what would become 360buy was born.

经理们一致表示同意，认为公司应该走电商这条路。于是在2005年末，京东商城的前身诞生了。

youdao

Retailers themselves, both online only and high street players, are trying harder to pick up traffic from voucher searches directly, rather than pay for a link from a voucher website.

零售商，包括纯在线零售商和街面零售商，都在努力提高折扣券搜索所带来的流量，而不再是付钱在专门的折扣券网站上增加一个链接。

youdao

Online advertising sales in China are estimated to bring Google only a few hundred million dollars a year.

VOA: special.2010.01.15

Only 6% has moved online.

只有6%在网上进行。

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BrightSpark Education says the online tutoring is used only as an addition to supplement regular teaching.

VOA: special.2011.04.21

But I know, vaguely (online only, just to be clear) one of the authors.

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Oppa, whose name comes from a Portuguese expression for surprise, is online only, eschewing brick and mortar stores to keep costs low and production efficient.

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This year, the internship information is online only.

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