YOU SAID:
I think my sister is more stupid than a walros
INTO JAPANESE
私の姉はセイウチよりバカだと思う
BACK INTO ENGLISH
I think my sister is stupid than walrus
INTO JAPANESE
私の姉はセイウチよりバカだと思う
BACK INTO ENGLISH
I think my sister is stupid than walrus
You've done this before, haven't you.