One possible version:
Please join in “Clear your plate” campaign.
Now, some of us students like buying a lot of snacks. They eat a lot even if they were not hungry. If they don’t like the food, or they can’t eat up the food, they will throw it away.
It is really a bad thing. We have wasted lot of food. And at the same time, it is bad for the students’ health.
So boys and girls, let’s change our habit. When we have dinners in restaurants, don’t order too much food. And try to eat up all the food we ordered. If we can’t eat up all of them, just pack them and bring them back home to eat. Please give up the snacks between meals. Encourage your classmates and parents to join us. If you find somebody is throwing away food, just stop them. Come on, dear friends. Let’s start with ourselves.
