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As SEOs, we know that search traffic has vulnerabilities and fluctuations that are out of our control.

作为SEO从业人士，我们都知道搜索流量脆弱并且容易波动，让人难以掌控。

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Word of mouth is powerful both for companies that need to hire good SEOs and for good SEOs to attract business.

口碑对需要优秀的搜索引擎优化的公司，和招揽生意的优秀的搜索引擎优化都很重要。

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Look for SEOs that use a holistic approach towards optimizing websites for search engines.

FORBES: Ethics in SEO: Your Website's Best Defense Against Google Algorithm Updates

Search engines are continually evolving their algorithms to stop the manipulative techniques SEOs use on websites to increase search visibility.

FORBES: Ethics in SEO: Your Website's Best Defense Against Google Algorithm Updates