food、fruit只有在表示种类时,是可数的。例如two fruits 两种水果、a lot of food很多种食物。
例句：
We have a lot of foods. Fish, meat, chicken, which one would like?
Some fruits freeze better than others.
相关介绍
Fresh fruits and vegetables are important and so is bran.
新鲜的水果和蔬菜很重要，麦麸也是。
Are there plenty of fresh fruits and vegetables in your diet?
你的饮食中新鲜果蔬充足吗？
Pick and ripen any green fruits in a warm dark place.
摘些还没有熟的水果然后在温暖阴暗的地方放熟。
More information on healthy foods should be provided at the point of sale.
销售点应提供更多有关健康食品的资料。
I think you'd better lay off fatty foods for a while.
我认为你最好暂时别吃高脂食物。
When you buy foods you have certain statutory rights.
在购买食物时，你有一定的法定权利。
