主要包括数据库的建立和维护以及前台应用程序的开发两个方面。
These mainly include the establishment and maintenance of the database and front-end application development.
更重要的是，慈善机构的移动应用程序将那些不一样的东西带到了前台——寓教于乐。
More importantly, charity apps bring something different to the table; they combine education and fun.
目前您的前台的活动在您的应用程序上被停止。
The activity in your app that's currently in the foreground is stopped.
目前您的前台的活动在您的应用程序上被停止。
The activity in your app that's currently in the foreground is stopped.
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