YOU SAID:

Don't stick you hand in the gift horse's mouth

INTO JAPANESE

贈り物の馬の口に手を突っ込むな

BACK INTO ENGLISH

don't put your hand in the gift horse's mouth

INTO JAPANESE

贈り物の馬の口に手を入れないで

BACK INTO ENGLISH

Don't put your hand in the gift horse's mouth

INTO JAPANESE

贈り物の馬の口に手を入れないで

BACK INTO ENGLISH

Don't put your hand in the gift horse's mouth