YOU SAID:
I hate potato and melon
INTO JAPANESE
私はジャガイモとメロンが嫌いです
BACK INTO ENGLISH
I don't like potatoes and melons.
INTO JAPANESE
私はジャガイモとメロンが好きではありません。
BACK INTO ENGLISH
I don't like potatoes and melons.
That didn't even make that much sense in English.