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