A component may also declare its own extension points, allowing it to be extended in turn by other components.
组件还可以声明自己的扩展点，从而使其可由其他组件扩展。
2
Because Ruby can be powerfully extended, the Rails framework is able to turn it into a sort of special-purpose language for building web applications.
正因为Ruby可以被强力扩展，Rails框架才可以将他转换成像是建造网站应用程序的专用语言。
3
This order promised, and to a remarkable extent delivered, stability and predictability which in turn allowed for the achievement of extended peace and prosperity.