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1·It's easy to underestimate the challenge of saving your POGOs to database tables.

对于将POGO保存到数据库表所面临的挑战，很容易被低估。

2·All of this means that you can immediately begin using POGOs as a replacement for your POJOs.

所有这些意味着您可以立即开始使用POGO作为POJO的替代选择。

3·But when you add the slightest bit of complexity to your object model, such as having two POGOs that are related to each other, things can quickly get more difficult.

但是当对象模型稍稍变复杂一点，例如有两个彼此相关的POGO，那么事情将很快变得困难起来。