on guard against

基本解釋

Thus, you should be on guard against this confused mapping.
因此，您應(yīng)該謹(jǐn)防這種有混淆的映射。
A few hours earlier, Li had reminded us again to be on guard against thieves, but Handy said, “Italy is not as chaotic as they made it seem. It sounded really terrifying.”
“李導(dǎo)游曾經(jīng)提醒過(guò)我們要提防小偷，不過(guò)Handy卻不以為然：”意大利沒(méi)有人們說(shuō)的那么亂，不過(guò)傳聞什么的聽(tīng)起來(lái)也嚇人的很。
The prince should be on guard against them and fear them as if they were declared enemies, because they will always help to bring about his downfall in adverse times.
君主應(yīng)該防范他們，對(duì)他們感到害怕，把他們當(dāng)作公開(kāi)的敵人來(lái)對(duì)待，因?yàn)樵诶щy時(shí)期他們總會(huì)促成他的垮臺(tái)。

One of the things, by the way, that Eikhenbaum does in passing is remind us that we should be on our guard against thinking that sound is onomatopoetic--that is, that it reflects the meaning of what it's talking about.
艾肯鮑姆在書(shū)中提到,他特別提醒我們,不應(yīng)該贊同擬聲現(xiàn)象，擬聲就是認(rèn)為聲音能反應(yīng)它所表達(dá)的意思。
耶魯公開(kāi)課 - 文學(xué)理論導(dǎo)論課程節(jié)選

Such regimes are therefore inherently belligerent and democratic nations must always be on guard against them.
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But we are not on guard against deflation, whereby the intrinsic value of money goes up--the opposite of inflation.
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Crises tend to come from places you are not on guard against.
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