范文：
As is shown in the picture, two men had a big dinner in a restaurant, but much of the food was left and some was even untouched at all. When the waitress asked them to pack the remaining food, they felt very surprised, thinking that it was unbelievable for them to do things like that with too much money in their pocket.
It is a pity that many people act like the two men in the picture. In my view, we should pack the leftovers when we have meals outside. As we all know, saving is a fine tradition for our Chinese people and therefore we shouldnt waste a bit food. Also, there is not enough food in the world and there are many people starving. In addition, we students should form the habit of saving food and give away some to the people in need. Finally, we have the responsibility to help people around us realize the importance of saving.
Only in this way can we build up an economized society and live a happy and healthy life.