YOU SAID:
the donkey swoons over pizza
INTO JAPANESE
ロバはピザの上に急降下します
BACK INTO ENGLISH
The donkey plunges over the pizza
INTO JAPANESE
ロバはピザの上に急落
BACK INTO ENGLISH
The donkey plunges onto the pizza
INTO JAPANESE
ロバはピザの上に急落します
BACK INTO ENGLISH
The donkey plunges onto the pizza
That didn't even make that much sense in English.