There's the maxims of manner, including things like be clear, and avoid ambiguity.

还有一些行为准则，包括“要清楚，避免模棱两可”。

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The course teaches students to avoid ambiguity and obscurity of expression.

这门课程教学生避免表达上的模棱两可、含混不清。

《牛津词典》

Write clear definitions in order to avoid ambiguity.

释义要写清楚以免产生歧义。

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"You have to declare yourself as fast as you can to avoid ambiguity, " he says.

FORBES: Rebirth of a Sales Man

Donors who really care how their money is used need to avoid ambiguity and rely on more than just good faith promises.

FORBES: Give To Your Alma Mater, But Do So With Open Eyes

Experts also suggested using clearly defined terms and articles in the new law to avoid ambiguity, while also noting that overregulation can become an obstacle, as witnessed in many laws around the world.

UNESCO: MEDIA SERVICES