阅读下面短文，用方框内所给词汇的适当形式填空，使短文语义完整。
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good on other appear especially before share side and
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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 {#blank#}1{#/blank#}in
2016. Now it is many people's favorite app,{#blank#}2{#/blank#}the young.
With Douyin, users can record videos, edit (编辑) them and {#blank#}3{#/blank#}them
online. It is very easy{#blank#}4{#/blank#}interesting.
We can share our videos with our friends with just a tap on the mobile phone
screen. What's more, it's a great way to spend our free time by {#blank#}5{#/blank#}through those funny videos.
However, every coin has two {#blank#}6{#/blank#}. The app also has bad things. On the one
hand, some people spend long hours {#blank#}7{#/blank#} the app, which is harmful for their health. On
the {#blank#}8{#/blank#} hand, users can also find some bad things on
the app. Such thing is unsuitable and meaningless.
In my opinion, Douyin should check the
videos {#blank#}9{#/blank#} they are uploaded(上传)in order to keep a healthy environment for its users. Douyin is not
{#blank#}10{#/blank#}for
teenagers. We should not use it too often.
