众所周知 ,食品是应该吃新鲜的。但是 ,有的食品如吃得太新鲜 ,则于健康不利 ,甚至使人得病。现举例如下 :●据报载 ,某市农民牵着奶牛上街卖奶 ,现挤现卖 ,使市民既吃到了新鲜的牛奶 ,又防止了牛奶掺水使假 ,因此颇受欢迎。其实这是愚昧的倒退。因为这种最原始的售奶方式 ,其 As we all know, food should be fresh. However, if some foods are too fresh, they are not good for health and may even make people sick. Some examples are as follows: ● It is reported that a farmer in a certain city took the dairy cows to the streets for selling milk and now they are selling them to the public. This makes the public not only eat fresh milk but also prevent the milk from being mixed with water to make fake ones. In fact, this is a foolish retrogression. Because of this the most primitive way of selling milk, its