YOU SAID:

don't beat a dead horse when you fall down on the turtle's toenail that dropped you on your skateboard

INTO JAPANESE

スケートボードに落ちたカメの足の爪に倒れたときに、死んだ馬を倒さないでください

BACK INTO ENGLISH

Do not kill a dead horse when it falls on the toenails of a turtle that has fallen on a skateboard

INTO JAPANESE

スケートボードに落ちたカメの足の爪に落ちたときに死んだ馬を殺さないでください

BACK INTO ENGLISH

Do not kill a dead horse when it falls on the toenails of a turtle that has fallen on a skateboard