In recent years，with the development of technology，many popular apps（应用程序）have been produced.These days，an app has caught great attention.It is Douyin，a video sharing app.Douyin first appeared in 2016.Now it is many people's favorite app，especially the young.

    With Douyin，users can record videos，edit（编辑） them and share them on line.It is very easy and interesting.We can share our videos with our friends by just a click（点击）on the mobile phone screen.What 's more，it's a great way to spend our free time by looking through those funny videos.

    However，every coin has two sides.The app also has bad influences.On the one hand，some people spend long hours on the app.which is harmful for their health.On the other hand，users can also find bad or meaningless things on the app.Douyin is not good for teenagers，we shouldn't use it too often.

（1）Douyin first appeared in 2016. 　   　

（2）Only the young love Douyin. 　   　

（3）People can spend their free time by looking through the funny videos. 　   　

（4）It's not good for people 's health to spend long hours on Douyin. 　   　

（5）There are not any bad things on Douyin.