氷河 ひょうが 決壊 けっかい洪水 こうずいじゃないです
hyōga kokekkaikōzuijanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 氷河湖決壊洪水

1. It's not a glacial lake outburst flood.

Negative
Polite
Casual Register