It would not prove worthwhile to instigate a nuclear attack. 挑起核攻擊最終是不值得的。
A recent big Russian military exercise, which officials say culminated in a dummy nuclear attack on Poland, highlights the region's vulnerability. 官員們表示,最近俄羅斯的一場大型軍事演習,在一次對波蘭虛擬的核攻擊中達到頂點,突出了該區域的弱點。