还有很多其他jaxb注释，但您在本例中只要用到这个。
There are many other JAXB annotations, but this is the only one that you need to use in this case.
Bouncy Castle的实现可以免费得到，并可用于任何目的，只要您在发布时加入许可证信息。
Bouncy Castle's implementation is available free of charge and you can use it for any purpose provided you include the license information in your distributions.
只要您在具有不同语义的不同领域间进行模型转换，模型同步都将是一个挑战。
Model synchronization will always be a challenge whenever you perform model transformation between different domains with different semantics.
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