For many applications, especially applications involving complex objects, a database like the ZODB is a lot easier to deal with.

对于许多应用程序，尤其是涉及到复杂对象的应用程序，诸如 ZODB 等数据库要容易处理得多。

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It's these sorts of issues that make the process of round-tripping very complex, and a lot easier to talk about than to implement.

正是这类问题使得往返非常复杂，真正实现要比说起来困难得多。

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They make a lot of sense in complex scenarios where a lot of processing and bookkeeping is needed for the life cycle of complex session beans.

在一些复杂场景中，当复杂会话 bean 的生命周期中需要执行大量的处理和簿记时，这些方法有很大的用处。

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In recent years, a virtual library of medical research has concluded that, other factors being equal, complex surgery turns out better when it's done at hospitals where the procedure is done a lot.

VOA: standard.2010.07.14

Split by gender, the chart raises a lot of complex questions about wages, quality of life, emphasis on leisure and the role gender plays.

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The moral of the story is that, however you use online booking services -- whether to purchase tickets or simply to build an itinerary -- the Internet has made the complex world of airline ticketing a lot more transparent.

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Travellers should be advised, however, that exploring the complex involves a lot of stairs.

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