问题描述：
英语翻译
5.
This is a flat and round piece of hard plastic and it has a small hole right in the middle of it.By using a special machine we can enjoy listening to high-quality sound or reading large quantities of information it has been rapidly replacing the record
5.
This is a flat and round piece of hard plastic and it has a small hole right in the middle of it.By using a special machine we can enjoy listening to high-quality sound or reading large quantities of information it has been rapidly replacing the record
问题解答：
我来补答展开全文阅读