公用功能 meaning in Chinese

utility functions

With aop , you still define a system s common functionality in one place , but you can declaratively define
使用aop时，仍然是在一个地方定义系统的公用功能，但是可以宣告式地定义
The motivation for adding an additional parent class was to reduce the complexity and to share common functionality between the action classes
添加附加父类的目的是减小复杂性，以及共享action类之间的公用功能。