This update is designed to reduce rankings for low-quality sites - sites which are low-value add for users, copy content from other websites or sites that are just not very useful.

这次更新的目的是降低劣质网站的排名，包括对用户价值低的、从其他网站拷贝内容的网站或不太有用的网站。

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However, the problems of not good enough production structure, low quality and technique content and so on, which can not meet the market needs, still exist.

但是，原材料工业产品结构不优、质量不高、技术含量低等与市场需求结构不相适应的问题依然存在。

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Majority of the varieties showed high protein content and low tannin content and moderate fat content. Some varieties are of high quality raw material for making high quality wine.

多数品种蛋白质含量偏高，单宁含量较低，脂肪含量适中，部分品种是酿造优质白酒的优质原料。

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Starting in its days as an independent company, many have criticized it as a "content farm, " a website that cranks out low-quality content designed to game search engines like Google to get page views and sell advertising.

CNN: Yahoo hacked, 450,000 passwords posted online

In many cases this low-quality content is produced by so-called content-farms that produce it on the cheap.

FORBES: The Real Value of the Huffington Post's Blogs

As you may know, Google recently altered its algorithm to keep low-quality content from cluttering up search results.

FORBES: The Real Value of the Huffington Post's Blogs