该标注执行类名与底层数据库表之间的实际映射。
This annotation performs the actual mapping between the class name and the table in the underlying database.
这些标注不仅提供关于列或表的特定信息，而且还可以跟踪一个给定源的进度或状态。
The notes not only provide specific information for columns or tables, but can also be utilized to track progress or status through a given source.
找一个你和孩子都很喜欢的活动——除了那些需要久坐的(电视、视频游戏以及网络！)——特别在你的时间表中标注。
Explore an activity that you and your kids both really love-other than a sedentary one (TV, video games and the Internet don't count!) -and make a point to work it into your schedule.
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