YOU SAID:
Hi! I am the worlds smartest person
INTO JAPANESE
こんにちは!私は世界で最も賢い人です
BACK INTO ENGLISH
Hello! I am the smartest person in the world
INTO JAPANESE
こんにちは!私は世界で最も賢い人です
BACK INTO ENGLISH
Hello! I am the smartest person in the world
You've done this before, haven't you.