coup de grace

基本解釋

The coup de grace is Cantor’s proof that some infinite sets are bigger than this.
這個(gè)論題是康托的殺手锏，他用它來(lái)證明某些無(wú)限集要比這個(gè)無(wú)限集大。
Adding a new twist to the tale, the latestresearch shows that the fungal coup de grace usually occurs at solar noon, whenthe sun is at its strongest.
這個(gè)故事又增加了一個(gè)新的進(jìn)展，最新的研究表明真菌的致命一擊發(fā)生在正午，即陽(yáng)光最強(qiáng)烈的時(shí)刻。
When he had completed theexcision, and had taken his souvenir, he administered the coup de grace: asingle deep slash across the neck, from left to right.
他完成切除，拿走紀(jì)念品之后，實(shí)施了最后的致命一擊：整個(gè)頸部從左向右，深深的一刀。

And then he hears the coup de grace, it's the shots, one after another, and then he sees a priest staggering out, overwhelmed by it all, and then he moves onto something else.
接下來(lái)他就聽見了那致命的聲響,槍聲,一聲接著一聲,之后他看見驚魂未定的牧師踉蹌而出,然后他就調(diào)轉(zhuǎn)筆鋒寫其它事情去了
耶魯公開課 - 1871年后的法國(guó)課程節(jié)選

In the end, it will probably be Mr Aso's mediocre performance that administers the coup de grace.
ECONOMIST: The ruling LDP plays a sloppy endgame

A coup de grace is an action or event which finally destroys something, for example, an institution, which has been gradually growing weaker.