Not only must you map objects into the database, you must also map the relationships that the object is involved with so they can be restored at a later date.

不仅必须将对象映射到数据库中，还必须将对象之间的关系进行映射，这样才能在以后进行恢复。

youdao

This method also clears the submittedValue property of each EditableValueHolder component so the form's data can be restored to the data from the map, ignoring any submitted data.

此方法还清除了每个 EditableValueHolder 组件的 submittedValue 属性以便表单数据能恢复成地图数据，同时忽略所有的提交数据。

youdao

Preferences are now stored per map so when re-opening a map your last position, start and end stations etc are all restored.

当因此重开一张地图你的最后位置时，偏爱现在被每地图储存，开始，终端等等全部被恢复。

youdao