warn against

基本解释

They also warn against the urge to place protectionist barriers up.
他们同时警告说，要提防设立贸易保护主义壁垒。
The authors warn against any false sense of precision when utilizing these, or any other indicators, and so caution against precise rankings.
报告作者警告说，在使用这些或任何其他指标时，不要认为他们十分精确，因此也反对精确的排名。
Pollsters warn against confusing “preference” (the public’s views on an issue) with “intensity” (the priority they give it).
民意测验家警告不要混淆“倾向”（公众对一个事件的观点）和“强度”（公众对事情的关注程度）两个概念。

But they warn against phoney sincerity, and (perhaps surprisingly) they advocate displays of weakness.
ECONOMIST: The genuine article
The labels warn against using the drugs in cancer patients with relatively mild anemia resulting from chemotherapy.
NPR: Doctors in Medicare Fight Over Right to Prescribe