there is more between the lines
言外之意还有更多
以上为机器翻译结果，长、整句建议使用 人工翻译 。
If a new field is added to the bean, there are three more lines to add for initialization and synchronization in each direction between the GUI components and domain model.
如果向Bean中添加新字段，则需要添加另外三行代码进行初始化以及在GUI组件和域模型实现双向同步。
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