根据下面短文内容,在短文的空格处填上一个恰当的词,使短文完整、通顺。
Here are some rules about how to make less pollution(污染))in Yucai Secondary School.
No-Garbage(垃圾)Lunch: How much garbage do you throw away(扔)after lunch? Some students can't eat their lunch up, they throw away the rest(剩下的)everywhere. No-Garbage Lunch means(意思是)students can't bring too much to school.
No-Car Day:On this day, nobody comes to school car! Cars give pollution to the . Remember:, ride or run. Use your legs! It's lots of fun.
No water waste(浪费) ! Many students think we have lots of water in the world, they always waste it. But there is a little(一点点)water for us to drink and use. Water isin our life. We have to do our best to save(节约)it.
We love our school, so we must the rules. If so, our school will be cleaner and more beautiful.