YOU SAID:
siblings are the worst creatures on this earth
INTO JAPANESE
兄弟はこの地球上で最悪の生き物です
BACK INTO ENGLISH
Brothers are the worst creatures on this planet
INTO JAPANESE
兄弟はこの惑星で最悪の生き物です
BACK INTO ENGLISH
Brothers are the worst creatures on this planet
That didn't even make that much sense in English.