YOU SAID:
My Donkey is very big and strong
INTO JAPANESE
私のロバは非常に大きくて強い
BACK INTO ENGLISH
My mare is very large and strong
INTO JAPANESE
私の馬は非常に大きく、強力です
BACK INTO ENGLISH
My horse is very large and powerful
INTO JAPANESE
私の馬は非常に大きく、強力です
BACK INTO ENGLISH
My horse is very large and powerful
That didn't even make that much sense in English.