こう性能 せいのう爆弾 ばくだんじゃありません
kōseino ubakudanjārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 高性能爆弾

1. It is not a high-performance bomb.; It's not a high-performance bomb.

Negative
Polite
Terminal Form