warn against

基本解释

They also warn against the urge to place protectionist barriers up.
他們同時警告說，要提防設立貿易保護主義壁壘。
The authors warn against any false sense of precision when utilizing these, or any other indicators, and so caution against precise rankings.
報告作者警告說，在使用這些或任何其他指標時，不要認爲他們十分精確，因此也反對精確的排名。
Pollsters warn against confusing “preference” (the public’s views on an issue) with “intensity” (the priority they give it).
民意測騐家警告不要混淆“傾曏”（公衆對一個事件的觀點）和“強度”（公衆對事情的關注程度）兩個概唸。

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