在发布广告之前，明确定义付费搜索的表现指标和特殊目的。

Define paid search performance metrics and specific goals before you start.

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土壤环境因子表征了石漠化在空间上岩性的差异特征，是石漠化类型的表现指标。

Factor of soil circumstance was an index of rocky desertification type and indicated the spatial difference of lithology.

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在任何水平，过于强调等级、数据表、标准测验分数、以及产品统计——可见的，易于测量的表现指标。

At every level, too much emphasis is placed on grades, spreadsheets, standardized test scores, and production statistics - the visible, easily measurable aspects of performance.

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