広島 ひろしま がた原爆 げんばくではありません
hiroshimagata gembakudewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 広島型原爆

1. It is not an A-bomb of the Hiroshima type.; It isn't a Hiroshima-type atomic bomb.

Negative
Polite
Formal Register