这里的重点是创建搜索活动的、已删除的或已完成的事项的查询。
The important part now is figuring out the queries that will give us active, deleted, or done items.
本文着重讨论了数据库设计的两个比较大的问题，而没有深入研究查询优化和应用程序考虑事项的细节。
The discussion focused on a couple of big issues of database design without getting into the details of query optimization and application considerations.
同时它应当支持毫不费力地新增任务和查询未完成事项：即使它只需要一点点你的时间和精力，你也会放弃，然后可怕的呼啸声又将到来。
It should also be effortless to add a new task or check what is left to do: if it requires even a little of your energy or time, you'll end up not doing and the dreared whoosh will come again.
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