MOST people regard grammar books and dictionaries as a codified set of rules prescribing DOS and don 'ts.

大多数人把语法书籍和字典当作是编纂好的一套规则，规定着孰是孰非。

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But some capital controls are more excusable than others. To help distinguish good controls from bad, some DOS and don 'ts endorsed by the G20 might help.

有些对资本的控制更能得到认可，因此，为了能从差的政策中分辨出好的政策，G20达成的允许和禁止事项可能会起到作用。

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After the first stage of experimentation, what are the DOs and DON 'ts of location-based marketing; are check-ins, discounts and freebies all there is to it?

在第一个试验期过后，地理位置服务能做与不能做的，收费的、打折的、免费的地方就会变得很清晰。

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For example, the New York State Department of Environmental Conservation lists some dos and don'ts of composting on its Web site: Do add lime, small amounts of wood ashes or crushed eggshells to the compost pile.

VOA: special.2009.06.23

Books that give a kind of guide to the dos and don'ts of princely behavior.

这种书籍指引君主行为,该做与不该做的事。

耶鲁公开课 - 政治哲学导论课程节选

To reinforce her message, Dame Sally has issued a list of "dos and don'ts".

BBC: Antibiotic resistance 'big threat to health'

Mr. Sanislo's experience reflects some of the dos and don'ts for would-be do-it-yourself car mechanics.

WSJ: Diagnostic Tools to Unleash Your Inner Mechanic

Every visitor to the Antarctic continent gets a lecture on dos and don'ts, like keeping proper distance from wildlife, and making sure to avoid even accidental littering.

FORBES: Go with the Floe