黒潮 くろしお だい蛇行 だこうではありません
kuroshioda idakōdewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 黒潮大蛇行

1. Is not the Kuroshio Current's great meandering.; Is not a large meander of the Kuroshio Current.

Negative
Polite
Formal Register