While J2EE does offer three strong technologies for handling data persistence, none of them is perfect.

尽管 J2EE 对处理数据持久性确实提供了三种可靠技术，但没有一种是完美的。

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Similar to multithreading, this presents a testing challenge: in a normal environment, the packets tend to arrive in perfect order, and the perturbation-handling functionality is not actually tested.

与多线程相似，这带来对测试的挑战：在正常环境中，分组往往是按正确的顺序到达，实际上并没有测试混乱处理功能。

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This is the reason: a faulty application with good error-handling seems to leave end-users with more satisfaction and comfort than one that's nearly perfect, but has a hostile error-handler.

理由在于：一个有错误但带有优秀的错误处理机制的应用程序，比近乎完美但其错误处理机制却不友好的应用程序，更能赢得最终用户的欢心。

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In short, if you are not taking this car to the racetrack, you are going to be more concerned with other thing besides its super-powerful drivetrain, incredible stability control and near perfect handling.

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The latter maneuver was particularly tricky, since handling liquids in space required perfect precision to prevent dangerous leaks.

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From the spacious cabin to the quiet ride and the great handling to the available power, I think that the Camry Hybrid is really the perfect family car.

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