YOU SAID:

Subsequently, seven septillion submarines submerged surreptitiously

INTO JAPANESE

その後、7隻の潜水艦がひそかに潜水しました

BACK INTO ENGLISH

After that, seven submarines dived secretly.

INTO JAPANESE

その後、7隻の潜水艦が密かに潜水しました。

BACK INTO ENGLISH

After that, seven submarines secretly dived.

INTO JAPANESE

その後、7隻の潜水艦が密かに潜水しました。

BACK INTO ENGLISH

After that, seven submarines secretly dived.