a double-edged sword

基本解釋

But consumption, for people of faith, is a double-edged sword.
但對自由市場的信仰者而言，消費是把雙刃劍。
Relatives and close friends can be a double-edged sword, Mr Shoebridge says.
親屬和親密的朋友可能是一把雙刃劍，肖布里奇先生說。
This is why dealing with obsolete electronics is very much a double-edged sword.
這就是為什么處理過時的電子設(shè)備是一把雙刃劍。

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.
對這些國際要道的控制,給這個地區(qū)帶來了大量的財富，但這處于中心的地理位置也如同一把雙刃劍，因為在和平時期它帶來繁榮，但，在戰(zhàn)亂時期，這塊土地常常被侵略,當(dāng)軍隊在此刀刃相交,或者經(jīng)過與強國征戰(zhàn)。
耶魯公開課 - 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
Most importantly, leverage is a double-edged sword and could have dire financial consequences for a retiree.
FORBES: Burdening Your Retirement With A Mortgage
But this could be a double-edged sword, as drug companies are swamped with difficult-to-prioritize targets.
FORBES: Genomics Won't Mean Cheap Drugs