Child:Why is there so much garbage in the street,Mom? 妈妈,为什么街上有这么多垃圾呢？ Mother:Because there are many litterbugs. 因为有很多垃圾虫. Child:What are litterbugs? 什么是垃圾虫呢? Mother:They're people who don't put their rubbish in trash cans. 就是那些不把垃圾丢在垃圾箱里的人.
