The traditional study about idioms is generally descriptive not prescriptive.

对于习语的翻译，传统的研究多是描述性，而非规定性的。

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But policy analysis is not really the point of his book, which is at its best when it is being merely descriptive, not prescriptive.

但是政策分析并非本书实质的重点，因此最好只是描述一下，而不作说明。

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youdao

Because EPR is not prescriptive about implementation, it provides incentives for businesses to voluntarily reduce packaging and get innovative with materials and design.

FORBES: How Corporate America Might Just Save Recycling

Thus the guidelines are not prescriptive in nature, but are suggestive to facilitate knowledge-based decision-making to adopt OA policies and strengthen national research systems.

UNESCO: OFFICE IN TASHKENT

"Mortality really is scheme specific and too prescriptive a trigger will not fit that very comfortably, " said James Wintle of Watson Wyatt.

BBC: Warning on pensioners' longevity