我不想吃饭
翻译为:I don't want to have a meal.
吃饭一般翻译为have a meal或者eat a meal. have a meal 表示“吃饭”,是固定搭配,要加冠词a。
I don't want to have meal.饭是不可数名词前面没有冠词,冠词就是a,an,the
I‘m not hungry.就是说我不饿~这样比较地道
I don't want to eat
i don't want to eat