So, university professors have teaching evaluations and you could use this as a rough and ready approximation of what students think of them.

大学教授要接受教学评估,你可以借此大致地概括出,学生对教授有什么看法。

耶鲁公开课 - 心理学导论课程节选

New pharmaceuticals, as a rough approximation, are introduced one to two years earlier in the U.S. than elsewhere.

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Simplyhired.com also has an easy-to-use salary tool that can give a rough approximation of pay in a particular geographic location.

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It's an impressive showcase for his slow and rusty howl, which always did sound like a rough approximation of bluesman Charley Patton.

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