The accuracy of a knowledge base can be maintained and improved over time by providing it with feedback -- confirmation or correction of the current categorization.

通过向知识库提供反馈（对当前的分类进行确认或纠正），知识库的精确性可以随着时间的推移得以维持和提高。

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Europe's housing correction, however, seems far from over.

而欧洲的房市修正何时结束，似乎还遥遥无期。

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If this happens, hover the mouse pointer over the red circle to display the error message, make the needed correction, and save the file again.

如果出现了此情况，请将鼠标指针悬停在红色圆圈上方以显示错误消息，然后进行必要的更正并再次保存文件。

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The housing market may already be self-correcting, and we should be wary of any over-correction.

FORBES: We Shouldn't Try to Save the Housing Market

Perhaps, but over-correction is often the outcome in Washington.

FORBES: The Sheep Stop Here: Another Church Committee or Full Review of Privacy Laws Needed?

Analysts like Yulong Li, research director at Balentine in Atlanta, have been saying that a 20% to 30% year-over-year correction in Chinese real estate along coastal cities like Beijing and Shanghai would not be unheard of.

FORBES: Is China's Real Estate Bubble Starting to Pop?