YOU SAID:
The radioactive porcupine cannon is perhaps the most dangerous weapon never invented.
INTO JAPANESE
放射性ヤマアラシの大砲は、おそらく決して発明した最も危険な武器です。
BACK INTO ENGLISH
Radioactive Porcupine cannon is the most dangerous weapon probably never invented.
INTO JAPANESE
放射性のヤマアラシの大砲は、おそらく決して発明した最も危険な武器です。
BACK INTO ENGLISH
Radioactive Porcupine cannon is the most dangerous weapon probably never invented.
That didn't even make that much sense in English.