YOU SAID:
what are you laughing at, my dog?
INTO JAPANESE
私の犬、何を笑っているの?
BACK INTO ENGLISH
My dog, what are you laughing at?
INTO JAPANESE
私の犬、あなたは何を笑っていますか?
BACK INTO ENGLISH
My dog, what are you laughing at?
That didn't even make that much sense in English.