A：All the soldiers in that country are armed to the teeth.

那个国家的士兵全部都全副武装起来了。

B：What's happening in that country?

发生什么事情了。

A：The neighboring country is threatening their sovereignty with its nuclear bombs.

邻国正在用核弹威胁他们呢。

注释：

armed to teeth

讲解：词语盛行于19世纪以后，但却出自于15世纪-16世纪，海盗活动猖獗的时候。相传海盗面目狰狞，手持凶器，牙齿间还咬着一把把尖刀。为形象生动，汉语中把它翻译为“武装到牙齿”，喻指全副武装。

Eg .The soldiers were armed to the teeth and ready to fight.

战士们全副武装，准备战斗。