YOU SAID:
bananas are a good source of protein
INTO JAPANESE
バナナは、蛋白質の良い情報源
BACK INTO ENGLISH
Bananas are a good source of protein.
INTO JAPANESE
バナナは、蛋白質の良い情報源です。
BACK INTO ENGLISH
Bananas are a good source of protein.
That didn't even make that much sense in English.