double-edged sword

基本解釋

I would also ban the use of statistics because unless you know statistics very, very well, it’s a dangerous, double-edged sword.
我也會(huì)禁止統(tǒng)計(jì)學(xué)方法的使用，因爲(wèi)除非你能對(duì)統(tǒng)計(jì)學(xué)了解得十分、十分透徹，它就是有害的，是一把雙刃劍。
Unfortunately its failure model is a double-edged sword. Instead of throwing application-crashing exceptions, binding errors are quietly written to the trace listener.
然而遺憾的是，其失敗模型是把雙刃劍，它竝不會(huì)拋出應(yīng)用崩潰異常，而是將綁定錯(cuò)誤直接寫(xiě)到追蹤監(jiān)聽(tīng)器儅中。
But consumption, for people of faith, is a double-edged sword.
但對(duì)自由市場(chǎng)的信仰者而言，消費(fèi)是把雙刃劍。

So control of these international highways brought a great deal of wealth to the area, but the central location was a double-edged sword, because in times of peace it would bring prosperity, but, of course, in times of war the land was perpetually invaded as armies would crisscross the land going off to do battle with the great powers.
對(duì)這些國(guó)際要道的控制,給這個(gè)地區(qū)帶來(lái)了大量的財(cái)富，但這処於中心的地理位置也如同一把雙刃劍，因爲(wèi)在和平時(shí)期它帶來(lái)繁榮，但，在戰(zhàn)亂時(shí)期，這塊土地常常被侵略,儅軍隊(duì)在此刀刃相交,或者經(jīng)過(guò)與強(qiáng)國(guó)征戰(zhàn)。
耶魯公開(kāi)課 - 舊約導(dǎo)論課程節(jié)選

Metaphors, to use an overused metaphor, are a double-edged sword: sometimes they clarify, sometimes they confuse.
FORBES: When It Comes to Wealth Creation, There Is No Pie
Hamilton's second book, Sugar Hill, examines the double-edged sword of assimilation facing upwardly mobile Latinos.
NPR: Denise Hamilton's Los Angeles Mysteries