When the action method is invoked, it is necessary to reattach the updated object to the persistence context, making the changes permanent.
当调用该操作方法时，必须重新使已更新的对象与持久化上下文建立联系。
2
Is the action of love a permanent escape of suffering?
爱的行动是对受苦的永久逃避吗？
3
Limited circumstances permanent fault, automatic re-closing devices on the move after the opening relay action Zaitao to identify reasons, be excluded from the power supply.