最后，核威慑以及美国将其威慑力延伸至同盟国，这些因素使得这两个超级大国在65年间并没有对彼此之间宣战。

Lastly, nuclear deterrence and America's extension of it to its Allies may be one reason why great powers have not directly gone to war against each other for 65 years.

youdao

最后，核威慑以及美国将其威慑力延伸至同盟国，这些因素使得这两个超级大国在65年间并没有对彼此之间宣战。

Lastly, nuclear deterrence and America's extension of it to its Allies may be one reason why great powers have not directly gone to war against each other for 65 years.

youdao