https://online2.tingclass.net/lesson/shi0529/0009/9870/9.mp3
https://image.tingclass.net/statics/js/2012
Child: Why is there so much garbage in the street, Mom?
小孩：媽媽，為什么街上有這么多垃圾呢?
Mother: Because there are many litterbugs.
母親：因為有很多垃圾蟲。
Child: What are litterbugs?
小孩：什么是垃圾蟲呢?
Mother: They’re people who don’t put their rubbish in trash cans.
母親：就是那些不把垃圾丟在垃圾桶里的人。
